Certifed Driveshafts
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| Certifed Driveshafts (12) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | DSS-1810EYC44 | DSS-1810EYC44 OEM Spicer 1810 Series Midship Driveshaft — 44″ CL-to-Center BearingThe DSS-1810EYC44… Show more (+) DSS-1810EYC44 OEM Spicer 1810 Series Midship Driveshaft — 44″ CL-to-Center BearingThe DSS-1810EYC44 is an OEM Spicer 1810 series certified driveshaft section in open U-joint to midship end yoke configuration, with a center U-joint to center bearing dimension of 44 inches. This assembly serves as the front half of a two-piece driveshaft system: the open U-joint connects at the transmission or transfer case output, and the midship end yoke terminates at the frame-mounted center support bearing. The 1810 series specifies a 1.875-inch U-joint cap diameter; all mating yoke bores in the system must match this dimension.The 44-inch CL-to-CB dimension positions this assembly for medium-to-long-wheelbase commercial truck applications. This measurement is taken from the front U-joint centerline to the center of the midship support bearing — it must correspond to the frame crossmember bracket centerline position at static ride height. A center bearing located 0.5 inches off the driveshaft centerline will produce angular misalignment that generates vibration proportional to driveshaft RPM. OEM Spicer Certified manufacture includes dynamic balancing to factory specification at the full 44-inch length. The 1810 series occupies the tier above the 1710 series in Spicer’s capacity hierarchy and is specified for Class 6–7 truck and heavy vocational drivetrain applications where the 1710 torque rating is insufficient.SpecificationsPart Number: DSS-1810EYC44Brand: OEM SpicerSeries: 1810CL to Center Bearing: 44″U-Joint Cap Diameter (1810 series): 1.875″Configuration: Open U-joint to Midship End YokeAssembly Type: Certified DriveshaftFitment & Installation NotesConfirm the frame bracket center position measures 44 inches from the front U-joint centerline at ride height before ordering DSS-1810EYC44. Verify all mating yokes are bored to 1810 series specification (1.875″ cap diameter). The midship stub shaft outer diameter must match the center support bearing inner bore — do not assume compatibility based on series designation alone; measure the shaft OD and bearing ID before assembly.The 44-inch midship section is adjacent to 45-inch, 45.250-inch, and 43-inch variants in the 1810 series EYC product family. Each is a distinct part number corresponding to a specific OEM frame bracket position — do not substitute based on close proximity of dimensions. Confirm your specific vehicle’s frame bracket drawing or measure in-vehicle before specifying DSS-1810EYC44.Install with yoke ears in phase at both U-joint ends. Torque center support bearing bracket hardware to specification and verify the bearing housing seats flush. After installation, road-test and recheck for vibration at various speeds. If vibration is present and tracks with vehicle speed rather than engine RPM, recheck the CL-to-CB dimension and bearing bracket alignment before condemning other components.Explore related Certified Driveshaft assemblies including 1810 series sections across the full length range. Show less (-) | Brand: OEM SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | DSS-1810EYC53.750 | DSS-1810EYC53.750 OEM Spicer 1810 Series Midship Driveshaft — 53.750″ CL-to-Center BearingThe DSS-1810EYC53.750… Show more (+) DSS-1810EYC53.750 OEM Spicer 1810 Series Midship Driveshaft — 53.750″ CL-to-Center BearingThe DSS-1810EYC53.750 is an OEM Spicer 1810 series certified driveshaft section in open U-joint to midship end yoke configuration, with a center U-joint to center bearing dimension of 53.750 inches. This is the front section of a two-piece driveshaft assembly: the open U-joint connects at the transmission or transfer case output, and the midship end yoke terminates at the frame-mounted center support bearing. The 1810 series U-joint cap diameter is 1.875 inches — this governs the bore size in every mating yoke throughout the assembly.At 53.750 inches, DSS-1810EYC53.750 is one of the longest midship sections in the 1810 certified driveshaft line. This length targets long-wheelbase vocational and commercial truck applications where geometry requires an extended front driveshaft section. The 0.750-inch increment in the part number is not arbitrary — 53.750 inches is a distinct dimension that corresponds to specific OEM frame bracket positions. Substituting a 53-inch or 54-inch section will misalign the center support bearing, causing angular contact stress in the bearing and characteristic vibration that increases proportionally with shaft speed. OEM Spicer Certified construction ensures factory dynamic balance at full length, and the tube specification maintains adequate critical speed margin for commercial operating RPMs.SpecificationsPart Number: DSS-1810EYC53.750Brand: OEM SpicerSeries: 1810CL to Center Bearing: 53.750″U-Joint Cap Diameter (1810 series): 1.875″Configuration: Open U-joint to Midship End YokeAssembly Type: Certified DriveshaftFitment & Installation NotesBefore ordering DSS-1810EYC53.750, measure the distance from the front U-joint centerline to the frame bracket centerline with the vehicle at ride height. The fractional dimension (53.750 inches) must match within measurement tolerance — use a tape measure with 1/16-inch or finer resolution and measure twice. Confirm all mating components are 1810 series (1.875″ U-joint cap bores), the center support bearing inner diameter matches the midship stub shaft OD, and the rear driveshaft section length and series are correct.At this length, critical speed evaluation is important. For standard commercial truck applications running factory gearing and tire sizes, the OEM Spicer tube specification provides adequate margin. However, if the vehicle has been modified with taller gearing or the operating speed envelope has changed from the original design intent, verify the driveshaft critical speed rating for this length and tube specification before operating at maximum vehicle speed.Install DSS-1810EYC53.750 with yoke ears in phase at both U-joint ends. Torque center bearing bracket hardware to specification with bearing housing seated flat against the bracket. Recheck driveshaft operating angles at ride height and at full suspension droop to confirm U-joint angles remain within 1810 series operating limits. This is especially relevant in chassis applications that have been lifted or lowered from factory geometry.Explore related Certified Driveshaft assemblies including 1810 series rear sections and center support bearing hardware. Show less (-) | Brand: OEM SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | DSS-1810EYC51 | DSS-1810EYC51 OEM Spicer 1810 Series Midship Driveshaft — 51″ CL-to-Center BearingThe DSS-1810EYC51… Show more (+) DSS-1810EYC51 OEM Spicer 1810 Series Midship Driveshaft — 51″ CL-to-Center BearingThe DSS-1810EYC51 is an OEM Spicer 1810 series certified driveshaft section in open U-joint to midship end yoke configuration, with a center U-joint to center bearing dimension of 51 inches. This assembly forms the front section of a two-piece driveshaft: the open U-joint connects at the transmission or transfer case output shaft, and the midship end yoke seats at the frame-mounted center support bearing. The 1810 series specifies a 1.875-inch U-joint cap diameter throughout — all connecting yokes must be bored to this dimension.At 51 inches, the DSS-1810EYC51 is among the longer midship sections in the 1810 series line and is suited for long-wheelbase commercial truck configurations where the two-piece driveshaft geometry requires substantial front-section length. Critical speed is an engineering consideration at this length: the tube diameter, wall thickness, and material specification of an OEM Spicer Certified assembly are selected to maintain adequate critical speed margin for standard commercial operating RPMs, but any aftermarket modifications that increase maximum vehicle speed or change final drive gearing must be evaluated against the specific critical speed rating. The 1810 series sits above the 1710 series in Spicer’s torque capacity hierarchy and is standard in heavy commercial Class 6–7 drivetrain applications.SpecificationsPart Number: DSS-1810EYC51Brand: OEM SpicerSeries: 1810CL to Center Bearing: 51″U-Joint Cap Diameter (1810 series): 1.875″Configuration: Open U-joint to Midship End YokeAssembly Type: Certified DriveshaftFitment & Installation NotesMeasure the distance from the front U-joint centerline to the frame bracket bearing centerline at ride height before ordering DSS-1810EYC51. Confirm all mating components — rear driveshaft section, connecting yokes, center support bearing — are 1810 series rated. The midship stub shaft OD must match the center support bearing inner bore exactly. A stub shaft with 0.002 inches of clearance in the bearing bore will allow the shaft to orbit at operating speed, causing vibration and fretting of the bearing race.On long-wheelbase trucks, the two-piece driveshaft design divides the total shaft length at an intermediate support point to keep each section below its critical speed. The 51-inch midship section combined with the rear section must be evaluated as a system — both sections must operate below their respective critical speeds at maximum vehicle speed. Confirm with your drivetrain engineer or refer to Spicer application data if operating near the design speed limit.Install DSS-1810EYC51 with yoke ears in phase at both U-joint ends. Torque center support bearing mounting hardware to specification. Verify rear driveshaft section length and series before completing installation. Recheck driveshaft angles after installation and at full suspension droop to confirm operating angles remain within the 1810 series U-joint angle rating.Explore related Certified Driveshaft assemblies including 1810 series front and rear sections across all available lengths. Show less (-) | Brand: OEM SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | DSS-1810EYC45.250 | DSS-1810EYC45.250 OEM Spicer 1810 Series Midship Driveshaft — 45.250″ CL-to-Center BearingThe DSS-1810EYC45.250… Show more (+) DSS-1810EYC45.250 OEM Spicer 1810 Series Midship Driveshaft — 45.250″ CL-to-Center BearingThe DSS-1810EYC45.250 is an OEM Spicer 1810 series certified driveshaft section configured as open U-joint to midship end yoke, with a center U-joint to center bearing dimension of 45.250 inches. This assembly serves as the front half in a two-piece driveshaft system: the open U-joint end connects at the transmission or transfer case output, and the midship end yoke terminates at the frame-mounted center support bearing. The 1810 series U-joint cap diameter is 1.875 inches — all mating yokes must be bored to this same dimension.The 45.250-inch CL-to-CB dimension is a precise figure; the 0.250-inch increment distinguishes this part from the 45-inch variant. Measure from your front U-joint centerline to the frame bracket bearing centerline with the vehicle at static ride height and confirm you need 45.250 inches, not 45 or 45.5. An error of 0.25 inches at the center bearing translates to angular misalignment across the full length of the midship shaft, which compounds vibration at operating speed. OEM Spicer manufacture and dynamic balancing ensures this 45.250-inch assembly runs within factory vibration tolerance limits. The 1810 series is used in heavy commercial drivetrain configurations including tandem and tridem axle trucks where the 1710 series torque rating is insufficient.SpecificationsPart Number: DSS-1810EYC45.250Brand: OEM SpicerSeries: 1810CL to Center Bearing: 45.250″U-Joint Cap Diameter (1810 series): 1.875″Configuration: Open U-joint to Midship End YokeAssembly Type: Certified DriveshaftFitment & Installation NotesMeasure your frame bracket centerline to open U-joint centerline distance before ordering DSS-1810EYC45.250. The quarter-inch increments in this product family matter — substituting a 44-inch or 45-inch section when 45.250 is required will position the center bearing off-axis. Confirm mating rear section series (must be 1810), center support bearing inner diameter matches the midship stub shaft OD, and all yokes use 1810 series U-joint bores (1.875″ cap diameter).At 45.250 inches, the midship section approaches lengths where critical speed becomes a more significant factor in specifying the driveshaft. The 1810 series tube diameter and wall thickness in OEM Spicer construction are chosen to maintain adequate critical speed margin for typical operating RPMs in commercial truck applications, but extended aftermarket modifications that change vehicle gearing or tire diameter should be evaluated against the driveshaft’s critical speed rating.When installing DSS-1810EYC45.250, verify yoke ear phasing (in-phase assembly at both U-joint ends unless specified otherwise) and confirm the center support bearing bracket mounting hardware is torqued to specification. Misalignment at the center bearing bracket — even a small angular offset — will accelerate bearing wear and is a common source of driveline vibration misdiagnosis.Explore related Certified Driveshaft assemblies including 1810 series rear sections across multiple lengths. Show less (-) | Brand: OEM SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | DSS-1810EYC40 | DSS-1810EYC40 OEM Spicer 1810 Series Midship Driveshaft — 40″ CL-to-Center BearingThe DSS-1810EYC40… Show more (+) DSS-1810EYC40 OEM Spicer 1810 Series Midship Driveshaft — 40″ CL-to-Center BearingThe DSS-1810EYC40 is an OEM Spicer 1810 series certified driveshaft section in an open U-joint to midship end yoke configuration, with a center U-joint to center bearing dimension of 40 inches. This assembly forms the front section of a two-piece driveshaft system, with the open U-joint end connecting at the transmission or transfer case output and the midship end yoke terminating at the frame-mounted center support bearing. All 1810 series components use a 1.875-inch U-joint cap diameter — this bore dimension must match every mating yoke and U-joint in the system.The 40-inch CL-to-CB measurement is the distance from the open U-joint centerline to the centerline of the midship support bearing. This measurement must align precisely with the frame crossmember bearing bracket. A center support bearing that is even 0.5 inches off-axis from the driveshaft centerline will generate vibration and destroy the bearing housing. OEM Spicer Certified construction ensures this assembly is dynamically balanced to factory spec at full length. The 1810 series is Spicer’s standard heavy commercial rating — positioned above the 1710 series in the torque capacity hierarchy and common in Class 6–7 truck and heavy vocational applications.SpecificationsPart Number: DSS-1810EYC40Brand: OEM SpicerSeries: 1810CL to Center Bearing: 40″U-Joint Cap Diameter (1810 series): 1.875″Configuration: Open U-joint to Midship End YokeAssembly Type: Certified DriveshaftFitment & Installation NotesBefore ordering DSS-1810EYC40, measure the distance from your front U-joint centerline to the frame bracket centerline at static ride height. This must be 40 inches. Verify all mating yokes are 1810 series with 1.875-inch cap bores — a 1710 yoke (1.938″ bore) will allow cap slop that causes catastrophic U-joint failure. The midship stub shaft must match the center support bearing inner diameter exactly.The 40-inch and 41-inch versions (DSS-1810EYC40 and DSS-1810EYC41) are distinct parts — a 1-inch difference in CL-to-CB dimension will result in the bearing bracket sitting offset from the bearing centerline. Do not substitute one for the other without confirming the frame bracket location. Both lengths are for similar truck applications, but the frame geometry varies by manufacturer and model year.Yoke phasing at both U-joint ends must be in phase unless vehicle geometry specifies otherwise. The center support bearing mounting hardware must be torqued to specification, and the bearing housing must seat flat against the frame bracket without angular preload. Confirm rear driveshaft section series and length before completing the installation of DSS-1810EYC40.Explore related Certified Driveshaft assemblies including matching 1810 series rear sections and center support bearings. Show less (-) | Brand: OEM SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | DSS-1810EYC41 | DSS-1810EYC41 OEM Spicer 1810 Series Midship Driveshaft — 41″ CL-to-Center BearingThe DSS-1810EYC41… Show more (+) DSS-1810EYC41 OEM Spicer 1810 Series Midship Driveshaft — 41″ CL-to-Center BearingThe DSS-1810EYC41 is an OEM Spicer 1810 series certified driveshaft section in an open U-joint to midship end yoke configuration, with a center U-joint to center bearing dimension of 41 inches. This is the front section of a two-piece driveshaft assembly: the open U-joint connects at the transmission or transfer case output, and the midship end yoke terminates at the frame-mounted center support bearing. The 1810 series uses a 1.875-inch U-joint cap diameter — this must match the bore of every mating yoke in the system.The 41-inch CL-to-CB dimension is the measurement from the open U-joint centerline to the center of the midship bearing. This number must correspond to your frame bracket centerline position at ride height. A two-piece driveshaft with a mislocated center bearing will run with a constant bind in the support bearing, destroying the bearing prematurely and introducing vibration that tracks with driveshaft RPM rather than engine RPM. OEM Spicer construction includes factory dynamic balancing across the full 41-inch length. The 1810 series is rated for heavy commercial and vocational applications — it steps above the 1710 series in both U-joint cap diameter and torque capacity, and is the standard series for Class 6–7 truck drivetrain specifications.SpecificationsPart Number: DSS-1810EYC41Brand: OEM SpicerSeries: 1810CL to Center Bearing: 41″U-Joint Cap Diameter (1810 series): 1.875″Configuration: Open U-joint to Midship End YokeAssembly Type: Certified DriveshaftFitment & Installation NotesVerify the frame bracket center position measures 41 inches from the front U-joint centerline with the vehicle at static ride height before ordering DSS-1810EYC41. Confirm the mating rear driveshaft section and all connecting yokes are also 1810 series — mixing 1710 and 1810 yokes is not possible due to the differing U-joint cap bore diameters (1.938″ vs 1.875″). The midship stub shaft OD must match the center support bearing ID exactly.At 41 inches, this is a longer midship section suitable for extended-wheelbase truck configurations. Longer midship shafts have a lower critical speed threshold — confirm the driveshaft’s operating RPM range stays below the critical speed for this length and series. OEM Spicer Certified assemblies are balanced to minimize this risk, but physical length remains a factor in critical speed calculation.Install with yoke ears in phase at both U-joint ends. Torque the center support bearing mounting hardware to specification and verify the bearing sits flush against the frame bracket without angular preload. The DSS-1810EYC41 is designed for use with a matching 1810 series rear driveshaft section; do not run this assembly as a single-piece replacement without confirming the rear section is properly accounted for.Explore related Certified Driveshaft assemblies including 1810 series rear sections and other CL-to-CB lengths. Show less (-) | Brand: OEM SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | DSS-1810EYC33.250 | DSS-1810EYC33.250 OEM Spicer 1810 Series Midship Driveshaft — 33.250″ CL-to-Center BearingThe DSS-1810EYC33.250… Show more (+) DSS-1810EYC33.250 OEM Spicer 1810 Series Midship Driveshaft — 33.250″ CL-to-Center BearingThe DSS-1810EYC33.250 is an OEM Spicer 1810 series certified driveshaft section configured as an open U-joint to midship end yoke, with a center U-joint to center bearing dimension of 33.250 inches. This assembly represents the front half of a two-piece driveshaft system: the open U-joint end connects at the transmission or transfer case output, and the midship end yoke terminates at the center support bearing that mounts to the vehicle frame crossmember. The 1810 series U-joint uses a 1.875-inch cap diameter — do not interchange with 1710 (1.938″) or 1610 (1.875″) hardware without confirming bore compatibility in the mating yokes.The 33.250-inch center-to-center bearing dimension is the critical measurement for this assembly: it represents the distance from the open U-joint centerline to the center of the midship bearing. This measurement must align with your vehicle’s frame-mounted bearing bracket position. Even a 0.250-inch discrepancy in this dimension will put the center support bearing in a bind or allow excess stub shaft movement, both of which cause vibration and accelerated bearing wear. OEM Spicer manufacture includes dynamic balancing to factory specification across the full assembly. The 1810 series is the standard heavy-duty configuration for Class 6–7 trucks and heavy commercial vehicles where the 1710 series does not provide sufficient torque capacity.SpecificationsPart Number: DSS-1810EYC33.250Brand: OEM SpicerSeries: 1810CL to Center Bearing: 33.250″U-Joint Cap Diameter (1810 series): 1.875″Configuration: Open U-joint to Midship End YokeAssembly Type: Certified DriveshaftFitment & Installation NotesBefore ordering DSS-1810EYC33.250, measure the distance from the front U-joint centerline to the center of your existing center support bearing bracket with the vehicle at ride height. This 33.250-inch figure must match your frame bracket position. Verify that the midship end yoke U-joint bore matches 1810 series cap diameter (1.875″) — the mating yoke on the rear driveshaft section must also be 1810 series. Confirm the center support bearing ID matches the midship stub shaft OD before assembly.The 1810 series occupies a tier above 1710 in Spicer’s torque capacity hierarchy. It is standard equipment on medium-to-heavy commercial trucks, tandem-axle configurations, and some severe-duty single-axle applications. If the existing driveshaft uses 1710 series components, do not mix series — replace both the front and rear driveshaft sections and the mating yokes simultaneously to maintain uniform torque rating through the entire drivetrain loop.Phasing is critical on two-piece driveshaft installations. The yoke ears at the open U-joint end and the midship end yoke must be in phase (yoke ears aligned in the same plane) unless your specific vehicle geometry calls for a specified phase angle. Out-of-phase installation of DSS-1810EYC33.250 produces a driveline vibration that increases with vehicle speed and load.Explore related Certified Driveshaft assemblies including 1810 series rear sections and matching center support bearing assemblies. Show less (-) | Brand: OEM SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | DSSPL170-SA35.5 | DSSPL170-SA35.5 OEM Spicer SPL170 Series Slip Assembly — 35.500″ Center-to-CenterThe DSSPL170-SA35.5 is… Show more (+) DSSPL170-SA35.5 OEM Spicer SPL170 Series Slip Assembly — 35.500″ Center-to-CenterThe DSSPL170-SA35.5 is an SPL170 series slip assembly manufactured to OEM Spicer specifications. This pre-assembled unit consists of a weld tube yoke welded to a splined stub shaft that slides inside a splined outer housing, with the collapsed center U-joint to center U-joint dimension measuring 35.500 inches. The SPL170 series sits at the top of the Spicer heavy-duty torque capacity hierarchy, above SPL140 and SPL90, and is reserved for the highest-torque commercial and severe-duty drivetrain applications.The SPL170 series uses a 2.165-inch cap diameter, which determines U-joint bore sizing throughout the assembly. Any yoke or U-joint connected to this slip assembly must be SPL170-compatible — substituting a 1810 series component into an SPL170 yoke ear will result in undersized cap engagement and immediate bearing failure under load. The 35.500-inch center-to-center measurement is the collapsed length from the front U-joint centerline to the rear U-joint centerline; confirm your vehicle’s driveshaft tunnel clearance and suspension travel envelope against this figure before ordering. OEM Spicer manufacture ensures the tube weld joint, balance weights, and spline engagement meet original equipment specifications for torque capacity and rotational balance.SpecificationsPart Number: DSSPL170-SA35.5Brand: OEM SpicerSeries: SPL170CL to CL (Collapsed): 35.500″U-Joint Cap Diameter: 2.165″Assembly Type: Slip Assembly, Open U-Joint without Flange to Weld YokeFitment & Installation NotesBefore installing the DSSPL170-SA35.5, measure the existing driveshaft CL-to-CL at ride height and at full suspension droop to confirm 35.500 inches falls within the operating range. The splined slip joint requires the mating slip yoke or splined bore to match the SPL170 spline profile — verify spline count and diameter at the stub shaft before assembly. When welding the yoke end to your driveshaft tube, confirm tube OD and wall thickness match the yoke bore specification; an off-center weld will cause balance issues that no static balancing can fully correct.The SPL170 is Spicer’s highest-capacity series in commercial use, rated for the torque demands of Class 7 and Class 8 trucks, heavy construction equipment, and severe-duty vocational vehicles. It supersedes the SPL140 in load capacity and is not found in light-duty or half-ton applications. If your application is a modified pickup or medium-duty truck previously running 1810 series hardware, SPL170 represents an upgrade in both U-joint cap diameter and overall assembly strength — but both the mating yokes and U-joints must be changed to SPL170 specification simultaneously.Spicer-certified driveshaft assemblies are dynamically balanced to factory tolerances before shipping. Confirm the DSSPL170-SA35.5 installation phasing (yoke ears in phase, not out of phase) when connecting to the front and rear yokes — out-of-phase assembly causes a 2x-frequency vibration that increases with vehicle speed and is often misdiagnosed as a tire balance issue.Explore related Slip Assembly components including SPL140 and 1810 series slip assemblies for alternative torque ratings. Show less (-) | Brand: OEM SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | DSSPL170-EYC58.5 | DSSPL170-EYC58.5 Driveshaft — OEM SPICER SPL170 SeriesThe DSSPL170-EYC58.5 is an OEM SPICER… Show more (+) DSSPL170-EYC58.5 Driveshaft — OEM SPICER SPL170 SeriesThe DSSPL170-EYC58.5 is an OEM SPICER SPL170 series certified driveshaft with an open U-joint to end yoke configuration and a center U-joint to center bearing (CL to CB) dimension of 58.500″. As a high-torque SPL170 series assembly, this unit is specified for heavy commercial and industrial driveline applications requiring extended shaft length between the center U-joint and center bearing mount.SpecificationsPart Number: DSSPL170-EYC58.5Brand: OEM SPICERSeries: SPL170Configuration: Open U-joint to End YokeCenter U-Joint to Center Bearing (CL to CB): 58.500″Certification: Certified DriveshaftThe 58.500″ CL to CB measurement on the DSSPL170-EYC58.5 driveshaft is the defining dimensional specification for installation fitment in a two-piece driveshaft system. This longer CL-to-CB span accommodates installations with a greater distance between the center bearing crossmember and the forward U-joint. Confirm end yoke series, flange or spline interface specs, and center bearing bracket location before specifying this assembly.Built to OEM SPICER standards, the DSSPL170-EYC58.5 certified driveshaft meets the dimensional accuracy and balance requirements of the SPL170 series, making it appropriate for high-torque heavy-duty commercial powertrain installations where the 58.500″ CL-to-CB dimension matches the installation requirement. Show less (-) | Brand: OEM SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | DSSPL170-EYC49 | DSSPL170-EYC49 Driveshaft — OEM SPICER SPL170 SeriesThe DSSPL170-EYC49 is an OEM SPICER… Show more (+) DSSPL170-EYC49 Driveshaft — OEM SPICER SPL170 SeriesThe DSSPL170-EYC49 is an OEM SPICER SPL170 series certified driveshaft configured open U-joint to end yoke, with a center U-joint to center bearing (CL to CB) dimension of 49″. The SPL170 series is among the highest-rated in the Spicer torque capacity lineup, intended for heavy commercial and industrial driveline service where high torque loads and robust driveline integrity are required.SpecificationsPart Number: DSSPL170-EYC49Brand: OEM SPICERSeries: SPL170Configuration: Open U-joint to End YokeCenter U-Joint to Center Bearing (CL to CB): 49″Certification: Certified DriveshaftFor the DSSPL170-EYC49 driveshaft, the 49″ CL to CB measurement is the primary dimensional check for two-piece driveshaft fitment, defining the distance from the center U-joint to the center bearing mounting point. Confirm the series compatibility of the mating end yoke and verify the center bearing bracket spacing in the vehicle or equipment frame before specifying this assembly.OEM SPICER certification on the DSSPL170-EYC49 signifies production to original equipment dimensional and balance standards, maintaining SPL170 series specifications throughout the assembly. Show less (-) | Brand: OEM SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | DSSPL170-EYC44 | DSSPL170-EYC44 Driveshaft — OEM SPICER SPL170 SeriesThe DSSPL170-EYC44 is an OEM SPICER… Show more (+) DSSPL170-EYC44 Driveshaft — OEM SPICER SPL170 SeriesThe DSSPL170-EYC44 is an OEM SPICER SPL170 series certified driveshaft with an open U-joint to end yoke configuration and a center U-joint to center bearing (CL to CB) dimension of 44″. Built to SPL170 series specifications, this assembly is positioned at the high end of Spicer’s torque capacity range for heavy commercial and industrial driveline service.SpecificationsPart Number: DSSPL170-EYC44Brand: OEM SPICERSeries: SPL170Configuration: Open U-joint to End YokeCenter U-Joint to Center Bearing (CL to CB): 44″Certification: Certified DriveshaftFitment of the DSSPL170-EYC44 driveshaft depends on matching the 44″ CL to CB measurement to the installation’s center bearing bracket location. The SPL170 series rating establishes the torque and load parameters for this certified assembly. Confirm the end yoke series, flange bolt pattern or spline spec, and center bearing mount configuration at both connection points prior to installation.The OEM SPICER designation on the DSSPL170-EYC44 indicates this unit is built to original equipment standards, with manufacturing tolerances consistent with SPL170 series applications in heavy-duty commercial powertrains. Show less (-) | Brand: OEM SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | DSSPL170-EYC47 | DSSPL170-EYC47 Driveshaft — OEM SPICER SPL170 SeriesThe DSSPL170-EYC47 is an OEM SPICER… Show more (+) DSSPL170-EYC47 Driveshaft — OEM SPICER SPL170 SeriesThe DSSPL170-EYC47 is an OEM SPICER SPL170 series certified driveshaft configured with an open U-joint to end yoke connection and a center U-joint to center bearing (CL to CB) dimension of 47″. SPL170 is a heavy-duty series rated at the upper end of the Spicer torque capacity range, designed for demanding commercial and industrial drive applications.SpecificationsPart Number: DSSPL170-EYC47Brand: OEM SPICERSeries: SPL170Configuration: Open U-joint to End YokeCenter U-Joint to Center Bearing (CL to CB): 47″Certification: Certified DriveshaftThe DSSPL170-EYC47 driveshaft ships as a certified assembly — confirming the CL to CB measurement of 47″ is the critical fitment check for two-piece driveshaft installations. The SPL170 series designation indicates high-torque capacity suitable for heavy truck and commercial powertrain use. Verify the mating end yoke series and flange or spline interface at both the forward and rearward attachment points before installation.OEM SPICER certification on this DSSPL170-EYC47 unit means the assembly meets original equipment manufacturing standards for dimensional accuracy and balance specifications within the SPL170 series rating. Show less (-) | Brand: OEM SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Premade Driveshafts (12) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | DSS-1810EYC44 | DSS-1810EYC44 OEM Spicer 1810 Series Midship Driveshaft — 44″ CL-to-Center BearingThe DSS-1810EYC44… Show more (+) DSS-1810EYC44 OEM Spicer 1810 Series Midship Driveshaft — 44″ CL-to-Center BearingThe DSS-1810EYC44 is an OEM Spicer 1810 series certified driveshaft section in open U-joint to midship end yoke configuration, with a center U-joint to center bearing dimension of 44 inches. This assembly serves as the front half of a two-piece driveshaft system: the open U-joint connects at the transmission or transfer case output, and the midship end yoke terminates at the frame-mounted center support bearing. The 1810 series specifies a 1.875-inch U-joint cap diameter; all mating yoke bores in the system must match this dimension.The 44-inch CL-to-CB dimension positions this assembly for medium-to-long-wheelbase commercial truck applications. This measurement is taken from the front U-joint centerline to the center of the midship support bearing — it must correspond to the frame crossmember bracket centerline position at static ride height. A center bearing located 0.5 inches off the driveshaft centerline will produce angular misalignment that generates vibration proportional to driveshaft RPM. OEM Spicer Certified manufacture includes dynamic balancing to factory specification at the full 44-inch length. The 1810 series occupies the tier above the 1710 series in Spicer’s capacity hierarchy and is specified for Class 6–7 truck and heavy vocational drivetrain applications where the 1710 torque rating is insufficient.SpecificationsPart Number: DSS-1810EYC44Brand: OEM SpicerSeries: 1810CL to Center Bearing: 44″U-Joint Cap Diameter (1810 series): 1.875″Configuration: Open U-joint to Midship End YokeAssembly Type: Certified DriveshaftFitment & Installation NotesConfirm the frame bracket center position measures 44 inches from the front U-joint centerline at ride height before ordering DSS-1810EYC44. Verify all mating yokes are bored to 1810 series specification (1.875″ cap diameter). The midship stub shaft outer diameter must match the center support bearing inner bore — do not assume compatibility based on series designation alone; measure the shaft OD and bearing ID before assembly.The 44-inch midship section is adjacent to 45-inch, 45.250-inch, and 43-inch variants in the 1810 series EYC product family. Each is a distinct part number corresponding to a specific OEM frame bracket position — do not substitute based on close proximity of dimensions. Confirm your specific vehicle’s frame bracket drawing or measure in-vehicle before specifying DSS-1810EYC44.Install with yoke ears in phase at both U-joint ends. Torque center support bearing bracket hardware to specification and verify the bearing housing seats flush. After installation, road-test and recheck for vibration at various speeds. If vibration is present and tracks with vehicle speed rather than engine RPM, recheck the CL-to-CB dimension and bearing bracket alignment before condemning other components.Explore related Certified Driveshaft assemblies including 1810 series sections across the full length range. Show less (-) | Brand: OEM SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | DSS-1810EYC53.750 | DSS-1810EYC53.750 OEM Spicer 1810 Series Midship Driveshaft — 53.750″ CL-to-Center BearingThe DSS-1810EYC53.750… Show more (+) DSS-1810EYC53.750 OEM Spicer 1810 Series Midship Driveshaft — 53.750″ CL-to-Center BearingThe DSS-1810EYC53.750 is an OEM Spicer 1810 series certified driveshaft section in open U-joint to midship end yoke configuration, with a center U-joint to center bearing dimension of 53.750 inches. This is the front section of a two-piece driveshaft assembly: the open U-joint connects at the transmission or transfer case output, and the midship end yoke terminates at the frame-mounted center support bearing. The 1810 series U-joint cap diameter is 1.875 inches — this governs the bore size in every mating yoke throughout the assembly.At 53.750 inches, DSS-1810EYC53.750 is one of the longest midship sections in the 1810 certified driveshaft line. This length targets long-wheelbase vocational and commercial truck applications where geometry requires an extended front driveshaft section. The 0.750-inch increment in the part number is not arbitrary — 53.750 inches is a distinct dimension that corresponds to specific OEM frame bracket positions. Substituting a 53-inch or 54-inch section will misalign the center support bearing, causing angular contact stress in the bearing and characteristic vibration that increases proportionally with shaft speed. OEM Spicer Certified construction ensures factory dynamic balance at full length, and the tube specification maintains adequate critical speed margin for commercial operating RPMs.SpecificationsPart Number: DSS-1810EYC53.750Brand: OEM SpicerSeries: 1810CL to Center Bearing: 53.750″U-Joint Cap Diameter (1810 series): 1.875″Configuration: Open U-joint to Midship End YokeAssembly Type: Certified DriveshaftFitment & Installation NotesBefore ordering DSS-1810EYC53.750, measure the distance from the front U-joint centerline to the frame bracket centerline with the vehicle at ride height. The fractional dimension (53.750 inches) must match within measurement tolerance — use a tape measure with 1/16-inch or finer resolution and measure twice. Confirm all mating components are 1810 series (1.875″ U-joint cap bores), the center support bearing inner diameter matches the midship stub shaft OD, and the rear driveshaft section length and series are correct.At this length, critical speed evaluation is important. For standard commercial truck applications running factory gearing and tire sizes, the OEM Spicer tube specification provides adequate margin. However, if the vehicle has been modified with taller gearing or the operating speed envelope has changed from the original design intent, verify the driveshaft critical speed rating for this length and tube specification before operating at maximum vehicle speed.Install DSS-1810EYC53.750 with yoke ears in phase at both U-joint ends. Torque center bearing bracket hardware to specification with bearing housing seated flat against the bracket. Recheck driveshaft operating angles at ride height and at full suspension droop to confirm U-joint angles remain within 1810 series operating limits. This is especially relevant in chassis applications that have been lifted or lowered from factory geometry.Explore related Certified Driveshaft assemblies including 1810 series rear sections and center support bearing hardware. Show less (-) | Brand: OEM SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | DSS-1810EYC51 | DSS-1810EYC51 OEM Spicer 1810 Series Midship Driveshaft — 51″ CL-to-Center BearingThe DSS-1810EYC51… Show more (+) DSS-1810EYC51 OEM Spicer 1810 Series Midship Driveshaft — 51″ CL-to-Center BearingThe DSS-1810EYC51 is an OEM Spicer 1810 series certified driveshaft section in open U-joint to midship end yoke configuration, with a center U-joint to center bearing dimension of 51 inches. This assembly forms the front section of a two-piece driveshaft: the open U-joint connects at the transmission or transfer case output shaft, and the midship end yoke seats at the frame-mounted center support bearing. The 1810 series specifies a 1.875-inch U-joint cap diameter throughout — all connecting yokes must be bored to this dimension.At 51 inches, the DSS-1810EYC51 is among the longer midship sections in the 1810 series line and is suited for long-wheelbase commercial truck configurations where the two-piece driveshaft geometry requires substantial front-section length. Critical speed is an engineering consideration at this length: the tube diameter, wall thickness, and material specification of an OEM Spicer Certified assembly are selected to maintain adequate critical speed margin for standard commercial operating RPMs, but any aftermarket modifications that increase maximum vehicle speed or change final drive gearing must be evaluated against the specific critical speed rating. The 1810 series sits above the 1710 series in Spicer’s torque capacity hierarchy and is standard in heavy commercial Class 6–7 drivetrain applications.SpecificationsPart Number: DSS-1810EYC51Brand: OEM SpicerSeries: 1810CL to Center Bearing: 51″U-Joint Cap Diameter (1810 series): 1.875″Configuration: Open U-joint to Midship End YokeAssembly Type: Certified DriveshaftFitment & Installation NotesMeasure the distance from the front U-joint centerline to the frame bracket bearing centerline at ride height before ordering DSS-1810EYC51. Confirm all mating components — rear driveshaft section, connecting yokes, center support bearing — are 1810 series rated. The midship stub shaft OD must match the center support bearing inner bore exactly. A stub shaft with 0.002 inches of clearance in the bearing bore will allow the shaft to orbit at operating speed, causing vibration and fretting of the bearing race.On long-wheelbase trucks, the two-piece driveshaft design divides the total shaft length at an intermediate support point to keep each section below its critical speed. The 51-inch midship section combined with the rear section must be evaluated as a system — both sections must operate below their respective critical speeds at maximum vehicle speed. Confirm with your drivetrain engineer or refer to Spicer application data if operating near the design speed limit.Install DSS-1810EYC51 with yoke ears in phase at both U-joint ends. Torque center support bearing mounting hardware to specification. Verify rear driveshaft section length and series before completing installation. Recheck driveshaft angles after installation and at full suspension droop to confirm operating angles remain within the 1810 series U-joint angle rating.Explore related Certified Driveshaft assemblies including 1810 series front and rear sections across all available lengths. Show less (-) | Brand: OEM SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | DSS-1810EYC45.250 | DSS-1810EYC45.250 OEM Spicer 1810 Series Midship Driveshaft — 45.250″ CL-to-Center BearingThe DSS-1810EYC45.250… Show more (+) DSS-1810EYC45.250 OEM Spicer 1810 Series Midship Driveshaft — 45.250″ CL-to-Center BearingThe DSS-1810EYC45.250 is an OEM Spicer 1810 series certified driveshaft section configured as open U-joint to midship end yoke, with a center U-joint to center bearing dimension of 45.250 inches. This assembly serves as the front half in a two-piece driveshaft system: the open U-joint end connects at the transmission or transfer case output, and the midship end yoke terminates at the frame-mounted center support bearing. The 1810 series U-joint cap diameter is 1.875 inches — all mating yokes must be bored to this same dimension.The 45.250-inch CL-to-CB dimension is a precise figure; the 0.250-inch increment distinguishes this part from the 45-inch variant. Measure from your front U-joint centerline to the frame bracket bearing centerline with the vehicle at static ride height and confirm you need 45.250 inches, not 45 or 45.5. An error of 0.25 inches at the center bearing translates to angular misalignment across the full length of the midship shaft, which compounds vibration at operating speed. OEM Spicer manufacture and dynamic balancing ensures this 45.250-inch assembly runs within factory vibration tolerance limits. The 1810 series is used in heavy commercial drivetrain configurations including tandem and tridem axle trucks where the 1710 series torque rating is insufficient.SpecificationsPart Number: DSS-1810EYC45.250Brand: OEM SpicerSeries: 1810CL to Center Bearing: 45.250″U-Joint Cap Diameter (1810 series): 1.875″Configuration: Open U-joint to Midship End YokeAssembly Type: Certified DriveshaftFitment & Installation NotesMeasure your frame bracket centerline to open U-joint centerline distance before ordering DSS-1810EYC45.250. The quarter-inch increments in this product family matter — substituting a 44-inch or 45-inch section when 45.250 is required will position the center bearing off-axis. Confirm mating rear section series (must be 1810), center support bearing inner diameter matches the midship stub shaft OD, and all yokes use 1810 series U-joint bores (1.875″ cap diameter).At 45.250 inches, the midship section approaches lengths where critical speed becomes a more significant factor in specifying the driveshaft. The 1810 series tube diameter and wall thickness in OEM Spicer construction are chosen to maintain adequate critical speed margin for typical operating RPMs in commercial truck applications, but extended aftermarket modifications that change vehicle gearing or tire diameter should be evaluated against the driveshaft’s critical speed rating.When installing DSS-1810EYC45.250, verify yoke ear phasing (in-phase assembly at both U-joint ends unless specified otherwise) and confirm the center support bearing bracket mounting hardware is torqued to specification. Misalignment at the center bearing bracket — even a small angular offset — will accelerate bearing wear and is a common source of driveline vibration misdiagnosis.Explore related Certified Driveshaft assemblies including 1810 series rear sections across multiple lengths. Show less (-) | Brand: OEM SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | DSS-1810EYC40 | DSS-1810EYC40 OEM Spicer 1810 Series Midship Driveshaft — 40″ CL-to-Center BearingThe DSS-1810EYC40… Show more (+) DSS-1810EYC40 OEM Spicer 1810 Series Midship Driveshaft — 40″ CL-to-Center BearingThe DSS-1810EYC40 is an OEM Spicer 1810 series certified driveshaft section in an open U-joint to midship end yoke configuration, with a center U-joint to center bearing dimension of 40 inches. This assembly forms the front section of a two-piece driveshaft system, with the open U-joint end connecting at the transmission or transfer case output and the midship end yoke terminating at the frame-mounted center support bearing. All 1810 series components use a 1.875-inch U-joint cap diameter — this bore dimension must match every mating yoke and U-joint in the system.The 40-inch CL-to-CB measurement is the distance from the open U-joint centerline to the centerline of the midship support bearing. This measurement must align precisely with the frame crossmember bearing bracket. A center support bearing that is even 0.5 inches off-axis from the driveshaft centerline will generate vibration and destroy the bearing housing. OEM Spicer Certified construction ensures this assembly is dynamically balanced to factory spec at full length. The 1810 series is Spicer’s standard heavy commercial rating — positioned above the 1710 series in the torque capacity hierarchy and common in Class 6–7 truck and heavy vocational applications.SpecificationsPart Number: DSS-1810EYC40Brand: OEM SpicerSeries: 1810CL to Center Bearing: 40″U-Joint Cap Diameter (1810 series): 1.875″Configuration: Open U-joint to Midship End YokeAssembly Type: Certified DriveshaftFitment & Installation NotesBefore ordering DSS-1810EYC40, measure the distance from your front U-joint centerline to the frame bracket centerline at static ride height. This must be 40 inches. Verify all mating yokes are 1810 series with 1.875-inch cap bores — a 1710 yoke (1.938″ bore) will allow cap slop that causes catastrophic U-joint failure. The midship stub shaft must match the center support bearing inner diameter exactly.The 40-inch and 41-inch versions (DSS-1810EYC40 and DSS-1810EYC41) are distinct parts — a 1-inch difference in CL-to-CB dimension will result in the bearing bracket sitting offset from the bearing centerline. Do not substitute one for the other without confirming the frame bracket location. Both lengths are for similar truck applications, but the frame geometry varies by manufacturer and model year.Yoke phasing at both U-joint ends must be in phase unless vehicle geometry specifies otherwise. The center support bearing mounting hardware must be torqued to specification, and the bearing housing must seat flat against the frame bracket without angular preload. Confirm rear driveshaft section series and length before completing the installation of DSS-1810EYC40.Explore related Certified Driveshaft assemblies including matching 1810 series rear sections and center support bearings. Show less (-) | Brand: OEM SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | DSS-1810EYC41 | DSS-1810EYC41 OEM Spicer 1810 Series Midship Driveshaft — 41″ CL-to-Center BearingThe DSS-1810EYC41… Show more (+) DSS-1810EYC41 OEM Spicer 1810 Series Midship Driveshaft — 41″ CL-to-Center BearingThe DSS-1810EYC41 is an OEM Spicer 1810 series certified driveshaft section in an open U-joint to midship end yoke configuration, with a center U-joint to center bearing dimension of 41 inches. This is the front section of a two-piece driveshaft assembly: the open U-joint connects at the transmission or transfer case output, and the midship end yoke terminates at the frame-mounted center support bearing. The 1810 series uses a 1.875-inch U-joint cap diameter — this must match the bore of every mating yoke in the system.The 41-inch CL-to-CB dimension is the measurement from the open U-joint centerline to the center of the midship bearing. This number must correspond to your frame bracket centerline position at ride height. A two-piece driveshaft with a mislocated center bearing will run with a constant bind in the support bearing, destroying the bearing prematurely and introducing vibration that tracks with driveshaft RPM rather than engine RPM. OEM Spicer construction includes factory dynamic balancing across the full 41-inch length. The 1810 series is rated for heavy commercial and vocational applications — it steps above the 1710 series in both U-joint cap diameter and torque capacity, and is the standard series for Class 6–7 truck drivetrain specifications.SpecificationsPart Number: DSS-1810EYC41Brand: OEM SpicerSeries: 1810CL to Center Bearing: 41″U-Joint Cap Diameter (1810 series): 1.875″Configuration: Open U-joint to Midship End YokeAssembly Type: Certified DriveshaftFitment & Installation NotesVerify the frame bracket center position measures 41 inches from the front U-joint centerline with the vehicle at static ride height before ordering DSS-1810EYC41. Confirm the mating rear driveshaft section and all connecting yokes are also 1810 series — mixing 1710 and 1810 yokes is not possible due to the differing U-joint cap bore diameters (1.938″ vs 1.875″). The midship stub shaft OD must match the center support bearing ID exactly.At 41 inches, this is a longer midship section suitable for extended-wheelbase truck configurations. Longer midship shafts have a lower critical speed threshold — confirm the driveshaft’s operating RPM range stays below the critical speed for this length and series. OEM Spicer Certified assemblies are balanced to minimize this risk, but physical length remains a factor in critical speed calculation.Install with yoke ears in phase at both U-joint ends. Torque the center support bearing mounting hardware to specification and verify the bearing sits flush against the frame bracket without angular preload. The DSS-1810EYC41 is designed for use with a matching 1810 series rear driveshaft section; do not run this assembly as a single-piece replacement without confirming the rear section is properly accounted for.Explore related Certified Driveshaft assemblies including 1810 series rear sections and other CL-to-CB lengths. Show less (-) | Brand: OEM SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | DSS-1810EYC33.250 | DSS-1810EYC33.250 OEM Spicer 1810 Series Midship Driveshaft — 33.250″ CL-to-Center BearingThe DSS-1810EYC33.250… Show more (+) DSS-1810EYC33.250 OEM Spicer 1810 Series Midship Driveshaft — 33.250″ CL-to-Center BearingThe DSS-1810EYC33.250 is an OEM Spicer 1810 series certified driveshaft section configured as an open U-joint to midship end yoke, with a center U-joint to center bearing dimension of 33.250 inches. This assembly represents the front half of a two-piece driveshaft system: the open U-joint end connects at the transmission or transfer case output, and the midship end yoke terminates at the center support bearing that mounts to the vehicle frame crossmember. The 1810 series U-joint uses a 1.875-inch cap diameter — do not interchange with 1710 (1.938″) or 1610 (1.875″) hardware without confirming bore compatibility in the mating yokes.The 33.250-inch center-to-center bearing dimension is the critical measurement for this assembly: it represents the distance from the open U-joint centerline to the center of the midship bearing. This measurement must align with your vehicle’s frame-mounted bearing bracket position. Even a 0.250-inch discrepancy in this dimension will put the center support bearing in a bind or allow excess stub shaft movement, both of which cause vibration and accelerated bearing wear. OEM Spicer manufacture includes dynamic balancing to factory specification across the full assembly. The 1810 series is the standard heavy-duty configuration for Class 6–7 trucks and heavy commercial vehicles where the 1710 series does not provide sufficient torque capacity.SpecificationsPart Number: DSS-1810EYC33.250Brand: OEM SpicerSeries: 1810CL to Center Bearing: 33.250″U-Joint Cap Diameter (1810 series): 1.875″Configuration: Open U-joint to Midship End YokeAssembly Type: Certified DriveshaftFitment & Installation NotesBefore ordering DSS-1810EYC33.250, measure the distance from the front U-joint centerline to the center of your existing center support bearing bracket with the vehicle at ride height. This 33.250-inch figure must match your frame bracket position. Verify that the midship end yoke U-joint bore matches 1810 series cap diameter (1.875″) — the mating yoke on the rear driveshaft section must also be 1810 series. Confirm the center support bearing ID matches the midship stub shaft OD before assembly.The 1810 series occupies a tier above 1710 in Spicer’s torque capacity hierarchy. It is standard equipment on medium-to-heavy commercial trucks, tandem-axle configurations, and some severe-duty single-axle applications. If the existing driveshaft uses 1710 series components, do not mix series — replace both the front and rear driveshaft sections and the mating yokes simultaneously to maintain uniform torque rating through the entire drivetrain loop.Phasing is critical on two-piece driveshaft installations. The yoke ears at the open U-joint end and the midship end yoke must be in phase (yoke ears aligned in the same plane) unless your specific vehicle geometry calls for a specified phase angle. Out-of-phase installation of DSS-1810EYC33.250 produces a driveline vibration that increases with vehicle speed and load.Explore related Certified Driveshaft assemblies including 1810 series rear sections and matching center support bearing assemblies. Show less (-) | Brand: OEM SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | DSSPL170-SA35.5 | DSSPL170-SA35.5 OEM Spicer SPL170 Series Slip Assembly — 35.500″ Center-to-CenterThe DSSPL170-SA35.5 is… Show more (+) DSSPL170-SA35.5 OEM Spicer SPL170 Series Slip Assembly — 35.500″ Center-to-CenterThe DSSPL170-SA35.5 is an SPL170 series slip assembly manufactured to OEM Spicer specifications. This pre-assembled unit consists of a weld tube yoke welded to a splined stub shaft that slides inside a splined outer housing, with the collapsed center U-joint to center U-joint dimension measuring 35.500 inches. The SPL170 series sits at the top of the Spicer heavy-duty torque capacity hierarchy, above SPL140 and SPL90, and is reserved for the highest-torque commercial and severe-duty drivetrain applications.The SPL170 series uses a 2.165-inch cap diameter, which determines U-joint bore sizing throughout the assembly. Any yoke or U-joint connected to this slip assembly must be SPL170-compatible — substituting a 1810 series component into an SPL170 yoke ear will result in undersized cap engagement and immediate bearing failure under load. The 35.500-inch center-to-center measurement is the collapsed length from the front U-joint centerline to the rear U-joint centerline; confirm your vehicle’s driveshaft tunnel clearance and suspension travel envelope against this figure before ordering. OEM Spicer manufacture ensures the tube weld joint, balance weights, and spline engagement meet original equipment specifications for torque capacity and rotational balance.SpecificationsPart Number: DSSPL170-SA35.5Brand: OEM SpicerSeries: SPL170CL to CL (Collapsed): 35.500″U-Joint Cap Diameter: 2.165″Assembly Type: Slip Assembly, Open U-Joint without Flange to Weld YokeFitment & Installation NotesBefore installing the DSSPL170-SA35.5, measure the existing driveshaft CL-to-CL at ride height and at full suspension droop to confirm 35.500 inches falls within the operating range. The splined slip joint requires the mating slip yoke or splined bore to match the SPL170 spline profile — verify spline count and diameter at the stub shaft before assembly. When welding the yoke end to your driveshaft tube, confirm tube OD and wall thickness match the yoke bore specification; an off-center weld will cause balance issues that no static balancing can fully correct.The SPL170 is Spicer’s highest-capacity series in commercial use, rated for the torque demands of Class 7 and Class 8 trucks, heavy construction equipment, and severe-duty vocational vehicles. It supersedes the SPL140 in load capacity and is not found in light-duty or half-ton applications. If your application is a modified pickup or medium-duty truck previously running 1810 series hardware, SPL170 represents an upgrade in both U-joint cap diameter and overall assembly strength — but both the mating yokes and U-joints must be changed to SPL170 specification simultaneously.Spicer-certified driveshaft assemblies are dynamically balanced to factory tolerances before shipping. Confirm the DSSPL170-SA35.5 installation phasing (yoke ears in phase, not out of phase) when connecting to the front and rear yokes — out-of-phase assembly causes a 2x-frequency vibration that increases with vehicle speed and is often misdiagnosed as a tire balance issue.Explore related Slip Assembly components including SPL140 and 1810 series slip assemblies for alternative torque ratings. Show less (-) | Brand: OEM SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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