2-3-4951KX Slip Yoke 1310 series, 1.375×16 spline 6.000 Centerline to End (Screw on dust cap)
$31.43
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Description
2-3-4951Kx Slip Yoke — 1310 series, 1.375 x 16 spline | 6.000″ CL-to-end. Professional direct replacement. Verify spline count and CL-to-end length.
Full Description
The 2-3-4951KX slip yoke engages the transmission output shaft and allows the driveshaft to change effective length as the suspension cycles. It's a spline-specific part for 1310 series applications — the spline count and shaft diameter both have to match your transmission tailshaft exactly. Wrong spline count means it won't engage; wrong series means the u-joint won't fit the ears.
2-3-4951Kx Slip Yoke — 1310 Series Spline & Length Specs
The 1310 series covers light-duty trucks — F-150, Silverado 1500, Jeep Wrangler, Ram 1500. The 2-3-4951KX slip yoke specs: 1.375 x 16 spline | 6.000" CL-to-end. The center-to-end dimension controls how much travel the driveshaft has as the suspension compresses and droop cycles. Too short on lifted vehicles means you'll hit the end of spline travel at full droop — and that means the driveshaft separates.
Verify spline count on your transmission output shaft before ordering the 2-3-4951KX slip yoke. If the transmission was rebuilt or swapped, the tailshaft spline count may differ from the original application spec. Full spline engagement is non-negotiable — partial engagement under load damages the output shaft.
Key Features
- Series: 1310 — light-duty trucks — F-150, Silverado 1500, Jeep Wrangler, Ram 1500
- Spline: 1.375 x 16 — transmission tailshaft match required
- CL-to-end: 6.000" — determines driveshaft travel range, critical on lifted vehicles
- Brand: UDS
Specifications
- SKU: 2-3-4951KX
- Brand: UDS
- Series: 1310
- Spline Dia: 1.375
- Spline Count: 16
- CL to End: 6.000"
Additional information
| Center u joint to end |
6.000 |
|---|---|
| Partn number |
2-3-4951KX |
| Series |
1310 |
| Splines count |
16 |
| Splines dia |
1.375 |
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 | Center u joint to end 9.681 Notes Spicer Partn number 100-3-41X Series SPL100 ⋅ SPL90 Splines count 29.30 Splines dia 1.965 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Center u joint to end 9.000 Series 1351-20 Splines count 16 Splines dia 1.500 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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 | Center u joint to end 9.875 Notes Toyota truck/Land Cruiser This part is only sold in Kit 1343-20L Partn number 1303-20L Series 1351-20 Splines count 20 Splines dia 1.310 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Center u joint to end 6.00 Notes Toyota Land Cruiser Partn number 1303-21 Series 1351-20 Splines count 20 Splines dia 1.310 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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 | Center u joint to end 5.375 Partn number 1703-16 Series 1751 Splines count 16 Splines dia 1.063 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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 | Center u joint to end 6.724 Notes dust cap 211121X Partn number 2-3-15101x Series 1310 Splines count 18/20 Splines dia 1.338 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
