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| Center Support Bearing (324) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 3680-13 | Q: Why does the 3680-13 specify mounting hole spacing rather than center-to-base… Show more (+) Q: Why does the 3680-13 specify mounting hole spacing rather than center-to-base height?A: The Cadillac CT6 uses a bolt-pattern bracket design with two discrete mounting holes at a fixed 5.875" center-to-center separation, rather than the slot-type brackets common on trucks. The hole spacing is the primary identification dimension for this application. The bore ID is still 1.181" (30 mm).Q: Can I use the 3680-20 (standard CTS bearing) in a CT6?A: No — the CT6 and CTS use different bracket designs and mounting geometries. The CT6’s 5.875" hole spacing is specific to that platform. Using the CTS bracket on a CT6 would require drilling new holes in the crossmember or modifying the bracket, which is not recommended.Q: What GM OEM part number does the 3680-13 cross-reference for the Cadillac CT6 center support bearing?A: GM OEM part numbers for the CT6 center bearing are in the 84036186 series; confirm via VIN and GM GMPD parts catalog for exact production year coverage on the AWD drivetrain variant. Show less (-) | Application: Cadillac CT6 Bearing ID: 1.181 Center Bearing to Base: 0 Ctr to Ctr of Mount Holes: 5.875 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 3680-14 | The Camaro two-piece propshaft uses a specific center hanger bracket geometry calibrated… Show more (+) The Camaro two-piece propshaft uses a specific center hanger bracket geometry calibrated for the car’s floor tunnel architecture. The 3680-14 provides the 30 mm bore and 2.000" center-to-base height for Camaro applications where the tunnel crossmember positions the bearing exactly 2.000" below the mounting face.Bore ID: 1.181" (30 mm) — verify the stub shaft OD before installation; Camaro stub shafts can develop wear at the journal under high-load useCenter to base: 2.000" — Camaro-specific dimension; do not substitute a generic 2.250" domestic unitRubber isolator: the Camaro application demands an isolator compound capable of handling the harmonic frequencies of the LS-series V8 at performance operating RPMCompatible with center support bearing crossmember brackets on applicable Camaro generationsWarning: on modified Camaros with lowered suspension, the propshaft working angle at the center joint increases significantly from stock. Before replacing the 3680-14, check the propshaft angle with an inclinometer at the stub shaft — angles greater than 3 degrees at the center joint dramatically reduce center bearing service life on performance applications. Show less (-) | Application: GM Camaro Bearing ID: 1.181 Center Bearing to Base: 2.000 Ctr to Ctr of Mount Holes: 6.665 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 3680-15 | SKU3680-15ApplicationGM (various — confirm by VIN)Bore ID1.181" (30 mm)Center to Base2.625"TypeRubber-isolated center… Show more (+) SKU3680-15ApplicationGM (various — confirm by VIN)Bore ID1.181" (30 mm)Center to Base2.625"TypeRubber-isolated center support bearingOEM Cross-ReferenceGM part numbers in the 22800834 and 88951975 familiesApplication notes: the 3680-15 at 2.625" is among the taller GM 30 mm bore center bearing assemblies. This height is typical of GM fullsize car and some SUV applications where the propshaft routes below a deeply recessed tunnel crossmember. One verification warning: the 2.625" height is close to the 2.500" and 3.000" dimensions used in other applications — always verify the exact removed-bearing height before ordering, as any mismatch changes the propshaft driveline angle and produces vibration that is very difficult to diagnose without knowing the root cause. Show less (-) | Application: GM Bearing ID: 1.181 Center Bearing to Base: 2.625 Ctr to Ctr of Mount Holes: 7.500 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 3680-20 | 3680-20 — Cadillac CTS (2008–2010) Center Support BearingThe Cadillac CTS uses a… Show more (+) 3680-20 — Cadillac CTS (2008–2010) Center Support BearingThe Cadillac CTS uses a two-piece propshaft in its rear-wheel-drive configuration, with a center bearing carrier at the tunnel mid-point. The 3680-20 replaces the factory unit for the 2008–2010 CTS generation, using the 30 mm (1.181") bore matched to the CTS propshaft stub shaft journal.CTS center bearing failures manifest as a low-frequency drone at 40–70 mph that changes pitch when the transmission is in gear (load-sensitive), distinguishing it from exhaust resonance. The rubber isolator on the 2008–2010 CTS center bearing is especially prone to heat-related hardening due to the propshaft tunnel’s limited ventilation. Inspect the removed isolator: if the rubber has a glazed, oil-soaked appearance rather than clean degradation, check for a rear transmission output seal leak, which introduces oil to the isolator and accelerates its deterioration. GM OEM reference: 88951975 applies to the 2008–2010 CTS center support bearing. Show less (-) | Application: GM Bearing ID: 1.181 Center Bearing to Base: 1.750 Ctr to Ctr of Mount Holes: 6.750 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 3680-25 | SKU3680-25ApplicationGM (confirm via OEM part number)Bore ID1.181" (30 mm)Center to Base1.375"TypeRubber-isolated center… Show more (+) SKU3680-25ApplicationGM (confirm via OEM part number)Bore ID1.181" (30 mm)Center to Base1.375"TypeRubber-isolated center support bearingNoteThree GM SKUs share 1.181" bore and 1.375" height: 3680-25, 3680-40, 3680-80 — verify via OEM P/NThe 3680-25, 3680-40, and 3680-80 all measure 1.181" bore and 1.375" center-to-base — bracket arm angle and slot geometry differentiate themOrder by GM OEM part number from the removed bearing assembly, not by dimension aloneGM OEM part numbers in the 22800834 and 12472372 families cover this rangeTip: when three SKUs share the same dimensions, the most reliable identification method is to physically compare the removed bracket against the supplier’s bracket profile image. The arm angle (the angle between the bearing centerline and the bracket mounting flange) is the primary differentiator and is visible in a side-profile photograph of the removed bearing assembly. Show less (-) | Application: GM Bearing ID: 1.181 Center Bearing to Base: 1.375 Ctr to Ctr of Mount Holes: 6.750 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 3680-30 | 3680-30 SpecificationsApplication: GM | Bore ID: 1.181" (30 mm) | Center to… Show more (+) 3680-30 SpecificationsApplication: GM | Bore ID: 1.181" (30 mm) | Center to Base: 1.500" | Type: Rubber-isolated center support bearingThe 3680-30 sits at the 1.500" position in the GM 30 mm bore range, between the compact 1.375" units and the mid-height 1.750" versions. This height is used on GM platforms where the driveshaft routing and crossmember geometry require exactly this drop.One GM-specific engineering note: the bonded rubber isolator on the 3680-30 uses a compression-dominant load path — the rubber is designed to be loaded in compression (squeezed between inner and outer brackets as the shaft pushes down) rather than in shear. This design choice provides maximum isolator fatigue life. If the vehicle has been fitted with aftermarket low-profile tires that reduce wheel well clearance, the resulting changes to driveshaft phasing may introduce a shear component to the center bearing load, accelerating rubber deterioration. Inspect for tire modifications when diagnosing repeat center bearing failures on GM vehicles. Show less (-) | Application: GM Bearing ID: 1.181 Center Bearing to Base: 1.500 Ctr to Ctr of Mount Holes: 6.750 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 3680-35 | Q: Is the 3680-35 correct for a Chevy Silverado with a two-piece… Show more (+) Q: Is the 3680-35 correct for a Chevy Silverado with a two-piece driveshaft?A: The Silverado fullsize 4WD typically uses a 1.574" (40 mm) or 1.378" (35 mm) bore center bearing, not the 1.181" (30 mm) bore of the 3680-35. The 30 mm bore is more common in GM compact and mid-size platforms. Verify the stub shaft OD with a micrometer — if it measures 30 mm, the 3680-35 may apply, but confirm the bracket height (1.125") matches your vehicle.Q: What GM models typically use a 1.125" center-to-base center support bearing?A: The 1.125" height is found on GM passenger car and compact crossover driveshaft configurations where the crossmember bracket sits close to the propshaft centerline. Specific models include certain Cadillac, Pontiac, and compact GM truck variants. Confirm via GM OEM part numbers — numbers in the 22800834, 12472372, and 88951975 families cover various GM center bearing applications.Q: My GM vehicle shakes at 70 mph. How do I determine if the center bearing is the cause?A: Place the vehicle on a lift at idle and observe the driveshaft at low RPM. A worn center bearing often shows visible wobble or side movement at the center joint section. Alternatively, grip the driveshaft and feel for radial play at the center bearing location with the vehicle supported — any perceptible radial play confirms replacement is needed. Show less (-) | Application: GM Bearing ID: 1.181 Center Bearing to Base: 1.125 Ctr to Ctr of Mount Holes: 6.750 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 3680-40 | The 3680-40 and 3680-80 share the same bore (1.181") and center-to-base height… Show more (+) The 3680-40 and 3680-80 share the same bore (1.181") and center-to-base height (1.375") but differ in bracket configuration for different GM application variants. This is a recurring pattern in the 3680 GM series — dimensional duplicates that serve different model-year or body-style configurations. When selecting between 3680-40 and 3680-80, confirm the GM OEM part number from the removed bearing.Bore ID: 1.181" (30 mm) — confirm with micrometerCenter to base: 1.375" — identical to 3680-80; bracket profile is the distinguishing factorRubber isolator: bonded construction for GM-platform driveshaft frequency dampingCompatible with center support bearing brackets on applicable GM modelsWarning: a 1.375" and 1.500" center-to-base measurement looks similar when measured with a ruler. Use a digital caliper for this measurement — a 0.125" error here selects the wrong part and introduces a propshaft angle deviation that causes vibration. The difference is approximately 3.2 mm — important to resolve to 0.1 mm accuracy. Show less (-) | Application: GM Bearing ID: 1.181 Center Bearing to Base: 1.375 Ctr to Ctr of Mount Holes: 7.375 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 3680-45 | SKU3680-45ApplicationGM (confirm via VIN)Bore ID1.181" (30 mm)Center to Base0.250"TypeRubber-isolated center support bearingApplication… Show more (+) SKU3680-45ApplicationGM (confirm via VIN)Bore ID1.181" (30 mm)Center to Base0.250"TypeRubber-isolated center support bearingApplication notes: the 0.250" center-to-base height on the 3680-45 places it in the same ultra-compact category as the 2780-16 (BMW) and 9980-56 (Subaru) — a design where the crossmember sits nearly flush with the driveshaft centerline. On GM applications, this geometry appears in certain Cadillac and performance car platforms where the chassis tunnel routes the propshaft closer to the frame than standard truck configurations. The 0.250" height leaves very limited clearance for fastener access — use a low-profile socket or crowfoot to torque the bracket fasteners to specification without contacting the bearing housing. Show less (-) | Application: GM Bearing ID: 1.181 Center Bearing to Base: 250 Ctr to Ctr of Mount Holes: 6.750 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 3680-70 | 3680-70 — GM Center Support Bearing, 30 mm Bore, 1.750" DropThe 3680-70… Show more (+) 3680-70 — GM Center Support Bearing, 30 mm Bore, 1.750" DropThe 3680-70 addresses GM applications where the crossmember bracket requires a 1.750" drop to the driveshaft centerline with a 30 mm stub shaft bore. This mid-height dimension is common in GM mid-size truck and SUV platforms where the frame sits between the compact and fullsize truck height ranges.An unusual specification detail on this unit: GM two-piece driveshaft center bearings often incorporate a thermal break between the inner bearing race and the rubber isolator bracket. This break prevents heat from the bearing (generated by slight misalignment over time) from conducting into the rubber and accelerating hardening. The center support bearing 3680-70 maintains this design feature. GM OEM cross-references depend on exact model and production year — numbers in the 22800834 and 12472372 families are common for mid-size GM applications. Verify before ordering. Show less (-) | Application: GM Bearing ID: 1.181 Center Bearing to Base: 1.750 Ctr to Ctr of Mount Holes: 7.625 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 3680-80 | SKU3680-80ApplicationGM (various — confirm model year and body style)Bore ID1.181" (30 mm)Center… Show more (+) SKU3680-80ApplicationGM (various — confirm model year and body style)Bore ID1.181" (30 mm)Center to Base1.375"TypeRubber-isolated center support bearing1.181" (30 mm) bore — used on GM compact and mid-size platforms with smaller stub shaft journals1.375" center-to-base height — confirm against the removed bearing; adjacent GM variants use 1.500" and 2.000" heightsBonded rubber isolator: GM-application compound tuned for GMT-platform driveshaft frequenciesGM OEM cross-references in the 22800834 series; confirm by VIN and model yearTip: GM compact truck and SUV two-piece driveshafts use a stub shaft journal that often corrodes at the center bearing seat in vehicles from salt-belt states. After removing the old bearing, clean the journal with a fine grit flap disc — remove only the corrosion scale, not base metal. The journal should be smooth and within 0.003" of the 30.000 mm nominal diameter before pressing the new 3680-80. Show less (-) | Application: GM Bearing ID: 1.181 Center Bearing to Base: 1.375 Ctr to Ctr of Mount Holes: 7.500 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 3680-90 | 3680-90 SpecificationsBore ID: 1.181" (30 mm) | Center to Base: 3.250" | … Show more (+) 3680-90 SpecificationsBore ID: 1.181" (30 mm) | Center to Base: 3.250" | Type: Rubber-isolated center support bearingThe 3680-90 uses a tall 3.250" center-to-base bracket with a 30 mm bore — the same height as the 9980-10 but with a different bracket profile under the 3680 series designation. The distinction between the 3680-90 and 9980-10 for a given application is bracket geometry, not dimensions; always confirm via the OEM part number from the removed unit.This tall height requires careful attention to the crossmember mounting torque sequence. When the bracket has been installed finger-tight, the driveshaft will naturally pull the bracket to its loaded position. Only torque the fasteners to spec after the driveshaft is fully assembled and hanging under its own weight — pre-torquing with the driveshaft absent pre-loads the rubber isolator in a position that changes once the driveshaft weight is applied, leading to a permanently offset bearing position. Spicer and Dana cross-references for this geometry exist in the 2-26 series; confirm by application. Show less (-) | Bearing ID: 1.181 Center Bearing to Base: 3.250 Ctr to Ctr of Mount Holes: 9.250 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 6006LLU | Q: What is the 6006LLU and how does it differ from a… Show more (+) Q: What is the 6006LLU and how does it differ from a complete center support bearing assembly?A: The 6006LLU is an ISO 6006-type deep-groove ball bearing — 30 mm ID, 55 mm OD, 13 mm width, with double rubber lip seals (LLU = double contact seal). It is the inner rolling element only, supplied without a housing, rubber isolator, or mounting bracket. It is used to replace just the bearing inside an existing center support bearing housing when the housing and rubber isolator are still serviceable.Q: What are the equivalent part numbers for the 6006LLU?A: FAG 6006-2RSR, SKF 6006-2RS1, NSK 6006DDU, Timken 6006-2RS, and NTN 6006LLU are all equivalent ISO 6006 double-sealed bearings. Any of these from a reputable bearing manufacturer can substitute for the 6006LLU insert.Q: How do I press the 6006LLU into a housing without damaging the seals?A: Use a bearing press with a 55 mm OD driver tube that contacts only the outer race. Never press on the inner race when installing into a housing — this transfers press force through the ball elements and brinells the raceways. Ensure the housing bore is clean and dimensionally correct (55.000–55.010 mm) before pressing. Show less (-) | Application: Numerous Bearing ID: 1.181 Center Bearing to Base: 0 Ctr to Ctr of Mount Holes: 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 9980-10 | The 9980-10 combines a 30 mm (1.181") bore with a tall 3.250"… Show more (+) The 9980-10 combines a 30 mm (1.181") bore with a tall 3.250" center-to-base height — an unusual combination that serves applications where the crossmember sits very high above the driveshaft centerline. This geometry requires a long drop bracket to reach the bearing seat position.Bore ID: 1.181" (30 mm) — verify the stub shaft OD with a digital micrometer before installationCenter to base: 3.250" — one of the tallest 30 mm bore assemblies; confirm this height matches the removed unitLong drop brackets experience higher bending stress at the bracket-to-crossmember interface — inspect the crossmember mounting area for cracks before installationThe center support bearing rubber isolator volume is adequate at 3.250" height, providing effective vibration isolationWarning: tall-bracket center bearings are more sensitive to crossmember distortion than compact units. If the crossmember has been pushed or bent (from an off-road impact or previous repair), the long bracket arm will amplify the angular error at the bearing centerline. Verify crossmember geometry before installation — a distorted crossmember requires straightening or replacement before the center bearing can function correctly. Show less (-) | Application: MULTIPLE Bearing ID: 1.181 Center Bearing to Base: 3.250 Ctr to Ctr of Mount Holes: 3.625 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 9980-15 | SKU9980-15Bore ID1.181" (30 mm)ApplicationMultiple — verify against your modelTypeRubber-isolated center support bearing… Show more (+) SKU9980-15Bore ID1.181" (30 mm)ApplicationMultiple — verify against your modelTypeRubber-isolated center support bearing assemblyNoteMulti-application SKU — confirm bracket geometry matches your crossmemberApplication notes: the 9980-15 multi-application designation means this bearing is dimensionally compatible with a range of vehicles using 30 mm stub shaft journals. The critical verification step is confirming that the bracket profile — mounting slot position, arm angle, and isolator orientation — matches the crossmember on your specific vehicle. A multi-application bearing that is dimensionally correct at the bore but has an incorrect bracket arm angle will load the bearing asymmetrically and reduce service life. Always compare the 9980-15 bracket profile against the removed unit before final installation. Show less (-) | Application: MULTIPLE Bearing ID: 1.181 Center Bearing to Base: 0 Ctr to Ctr of Mount Holes: 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 9980-20 | 9980-20 — Isuzu Tall-Bracket Center Support Bearing, 30 mm BoreThe 9980-20 uses… Show more (+) 9980-20 — Isuzu Tall-Bracket Center Support Bearing, 30 mm BoreThe 9980-20 uses a 3.125" center-to-base height — the tallest in the Isuzu application range for 30 mm bore assemblies. This extended drop bracket places the center support bearing at the driveshaft centerline when the Isuzu crossmember is positioned significantly above the propshaft, a geometry found in certain Isuzu commercial and medium-duty configurations.At 3.125", the bracket arm length increases the bending moment at the mounting bolt location compared to shorter units. This makes correct torquing and bracket bolt condition especially important — use new fasteners if the originals show any thread damage or corrosion, and verify the crossmember mounting surface is flat and free of scale. Isuzu OEM cross-references in the 5-37510 series apply; exact number depends on model, production year, and payload class. Show less (-) | Application: Isuzu Bearing ID: 1.181 Center Bearing to Base: 3.125 Ctr to Ctr of Mount Holes: 3.625 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 9980-25 | SKU9980-25ApplicationGM (various — confirm model year)Bore ID1.181" (30 mm)Center to Base1.000"TypeRubber-isolated center… Show more (+) SKU9980-25ApplicationGM (various — confirm model year)Bore ID1.181" (30 mm)Center to Base1.000"TypeRubber-isolated center support bearing1.181" (30 mm) bore — smaller than the 35 mm and 40 mm units common in fullsize GM trucks; verify the stub shaft OD before ordering1.000" center-to-base height — compact bracket for GM applications with minimal crossmember dropGM OEM cross-references in the 22800834 and related series depend on the specific model and yearRubber isolator: bonded construction, not a loose insert that could rotate during installationTip: before pressing the 9980-25 onto the GM stub shaft, rotate the shaft one full revolution and listen for any roughness at the spline-to-slip yoke connection. A worn stub shaft slip yoke creates micro-axial movement that stresses the center bearing beyond its design load. Replace the stub shaft section if spline wear is detected. Show less (-) | Application: GM Bearing ID: 1.181 Center Bearing to Base: 1.000 Ctr to Ctr of Mount Holes: 7.500 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 9980-26 | 9980-26 Application CoverageVehicles: Chevy Colorado, GMC Canyon, Isuzu I-280, I-290, I-370 | … Show more (+) 9980-26 Application CoverageVehicles: Chevy Colorado, GMC Canyon, Isuzu I-280, I-290, I-370 | Bore ID: 1.181" (30 mm) | Bracket Thread: M12-1.75 | Type: Rubber-isolated center support bearingThe 9980-26 is notable for using M12-1.75 metric threaded fasteners — a specification detail that catches domestic shops off-guard. If the technician reaches for 7/16-inch SAE hardware to mount this bracket, the fasteners will cross-thread in the metric crossmember holes. Always use M12-1.75 fasteners as specified and torque to approximately 70–80 Nm (52–59 ft-lb).Colorado, Canyon, and Isuzu I-series mid-size trucks share platform architecture. The 9980-26 serves all three nameplates where equipped with a two-piece rear driveshaft. GM OEM reference: 25879571 applies to Colorado/Canyon; Isuzu OEM numbers in the 5-37510 series may apply to the I-series. Confirm via VIN for exact model year coverage. Show less (-) | Application: 1330 Bearing ID: 1.181 Center Bearing to Base: 4.000 Ctr to Ctr of Mount Holes: 3.625 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 9980-41 | Q: Is the 9980-41 the same as the 9980-54 — both show… Show more (+) Q: Is the 9980-41 the same as the 9980-54 — both show 1.181" bore and 2.125" height?A: No. Both have the same bore and height but differ in bracket configuration for different Subaru model applications. Confirm via the Subaru OEM part number from the removed bearing. The most reliable method is to photograph both the front and side profile of the removed bracket and compare against the supplier’s product images.Q: What causes premature failure of Subaru AWD center support bearings on Outback models?A: The Outback’s higher ride height and longer suspension travel create greater propshaft angle variation compared to the Legacy sedan. This additional angle range increases the cyclic bending stress on the center bearing. Combined with the constant AWD rotation load, Outback center bearings in rough-road use may require replacement at 60,000–80,000 miles versus 100,000+ miles on sedan models.Q: What torque spec applies to the 9980-41 bracket bolts on Subaru?A: Subaru specifies the center bearing bracket bolts at approximately 35–45 Nm (26–33 ft-lb) depending on the bolt size and model year. Refer to the Subaru factory service manual for your specific chassis; retorque after the first 500 miles. Show less (-) | Application: Subaru Bearing ID: 1.181 Center Bearing to Base: 2.125 Ctr to Ctr of Mount Holes: 6.750 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 9980-42 | The 9980-42 fills the 1.500" center-to-base position in Subaru’s AWD center bearing… Show more (+) The 9980-42 fills the 1.500" center-to-base position in Subaru’s AWD center bearing range — between the compact 0.750" and 1.000" units and the taller 1.750" and 2.125" variants. This height appears on Subaru models with a crossmember bracket drop that places the bearing centerline 1.500" below the mounting face.Bore ID: 1.181" (30 mm) — Subaru AWD stub shaft standard; verify the shaft OD before installationCenter to base: 1.500" — confirm against the removed bearing; do not substitute a 1.375" or 1.625" unitRubber-isolated bonded construction — the center support bearing isolator and bracket are supplied as a single unitSubaru OEM references in the 27471 series; confirm by chassis code and drivetrain specificationTip: Subaru uses locating tabs on some center bearing bracket designs. These tabs fit into corresponding slots in the crossmember — not just for alignment, but to prevent the bracket from rotating under torque reaction. If the crossmember slot is worn or torn, the bracket will rotate under acceleration, progressively changing the propshaft angle and accelerating bearing wear. Inspect the crossmember slot before installation. Show less (-) | Application: Subaru Bearing ID: 1.181 Center Bearing to Base: 1.500 Ctr to Ctr of Mount Holes: 6.750 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
