3642-171 – Stub & Midship Shaft – 22 x 0.960 Splines – Butt Dia 1.844″ – Tube Dia Wall 2.000X0.083
$100.70
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Description
3642-171 Midshaft Stub — 22 x 0.960 spline | 1.625″ spline length | 1.844″ butt dia | 4.375″ end-to-weld | fits 2.000 tube. Genuine two-piece driveshaft center section. Verify spline and tube specs.
Full Description
The 3642-171 midshaft stub is the center section of a two-piece driveshaft — it carries the center support bearing and bridges the front and rear shaft assemblies. Spline count, spline diameter, and butt diameter are all spec-specific. The 3642-171 midshaft stub won't fit a different tube OD or a different output shaft spline, and substituting a close-but-not-exact part will produce vibration that traces directly back to this component.
3642-171 Midshaft Stub — Spline & Tube Dimensions
The 3642-171 midshaft stub specs: 22 x 0.960 spline | 1.625" spline length | 1.844" butt dia | 4.375" end-to-weld | fits 2.000 tube. The butt diameter determines how the stub seats in the driveshaft tube — too loose and the weld joint runs off-center. Spline length determines engagement depth on the output shaft; short engagement under high torque loads damages the shaft splines before the stub shows any sign of wear.
When replacing a midshaft stub, measure both the tube ID and the output shaft spline count before ordering. Check runout on the new 3642-171 midshaft stub before welding — a stub with more than 0.005" runout will never balance correctly regardless of how many weights you add.
Key Features
- Spline: 22 x 0.960 — verify against output shaft
- Spline length: 1.625" — full engagement required under load
- Butt dia: 1.844" — must seat concentrically in driveshaft tube
- End-to-weld: 4.375" — factors into total shaft length
- Tube fit: 2.000 — designed for this tube specification
- Brand: UDS
Specifications
- SKU: 3642-171
- Brand: UDS
- Spline: 22 x 0.960
- Spline Length: 1.625"
- Butt Dia: 1.844"
- End to Weld: 4.375"
- Tube Fit: 2.000
Additional information
| Butt dia |
1.844 |
|---|---|
| End to weld |
4.375 |
| Partn number |
3642-171 |
| Splines count dia |
22 x 0.960 |
| Splines length |
1.625 |
| Tube dia |
2.000 |
| Style |
CVJ |
| Tube wall |
0.083" |
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| Stub & Midship Shaft (170) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Tube dia 2.000 Tube wall 0.120 Butt dia 1.766 Splines length 6.000 End to weld 7.750 Class LD Brand UDS Partn number 2-40-1701-2 Splines count dia 16 X 1.375 Style Slip | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Bearing dia N/A Butt dia 2.270 End to weld 8.760 Splines count dia 16 x 1.500 Splines length 7.700 Tube dia wall 2.500X0.120 Notes SPLINE LENGTH 7 Inch - SOLID BUTT Partn number N3-40-2512 Tube dia 2.500 Tube wall 0.120 Style Slip | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Tube dia 3.500 Tube wall 0.083" Butt dia 3.344 Splines length 3.000 End to weld 8.750 Splines count dia 16 x 1.562 Style Slip | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Tube dia 3.500 Tube wall 0.095" Butt dia 3.312 Splines length 3.000 End to weld 9.219 Splines count dia 16 X 1.750 Style Slip | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | Butt dia 3.312 Splines length 5.938 End to weld 8.562 Brand UDS Tube dia 3.500 Tube wall 0.095" Splines count dia 16 X 1.750 Style Slip | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Tube dia 3.500 Tube wall 0.134" Butt dia 3.250 Splines length 3.500 End to weld 7.562 Splines count dia 16 x 2.000 Style Slip | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Tube dia 3.000 Tube wall 0.083" Butt dia 2.844 Splines length 6.580 End to weld 9.200 Bearing dia 1.574 Class LD Brand UDS Partn number 3-53-1531 Splines count dia 16 x 1.500 Style Slip | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Tube dia 3.000 Tube wall 0.083" Butt dia 2.844 Splines length 1.844 End to weld 4.000 Bearing dia 1.574 Brand UDS Style FIXED Splines count dia 10 X 1.500 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Tube dia 3.500 Tube wall 0.095" Butt dia 3.312 Splines length 2.000 End to weld 4.031 Bearing dia 1.574 Brand UDS Splines count dia 10 X 1.500 Style FIXED | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Tube dia 3.500 Tube wall 0.083" Butt dia 3.344 Splines length 3.000 End to weld 9.890 Bearing dia 1.574 Brand UDS Notes Use boot 212007X, order separate. Will not fit 4180-10, 4180-45, 4180-46 Splines count dia 23/24 X 1.562 Style Slip | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
