S4-3-1751KX – Slip Yoke – 1.750″ Splines Dia – 1550 Series – Center U Joint To End 5.375
$320.97
1 in stock
Description
S4-3-1751KX slip yoke, 1550 series, 16 splines at 1.750″” bore diameter, 5.375″ center-to-end. Direct replacement for transmission output shaft interface.
Full Description
Driveline clunk, vibration at a specific speed, and unexplained transmission fluid leaks share a common culprit: a worn slip yoke. The S4-3-1751KX delivers a ready-to-install 1550 series replacement with 16 splines at 1.750"" diameter, purpose-built to solve these symptoms and restore smooth, quiet driveshaft operation.
Diagnosing Slip Yoke Failure
A healthy slip yoke moves smoothly on the output shaft with minimal radial play and no perceptible spline backlash. When the splines wear, the yoke develops side-to-side movement that creates the characteristic low-frequency thud heard during tip-in acceleration. Simultaneously, the scored sliding surface begins to damage the transmission seal, eventually producing a fluid trail on the driveshaft. Replacing the S4-3-1751KX at the first sign of spline wear prevents cascading damage to the seal and output shaft.
Part Specifications
| Specification | Detail |
|---|---|
| Part No. | S4-3-1751KX |
| Series | 1550 |
| Spline Count | 16 |
| Spline Bore | 1.750"" |
| U-Joint CL to End | 5.375" |
| Notes | Spicer |
Confirming the Right Part
The 16-spline, 1.750"" bore is the critical match criterion for your transmission. Count the splines on your output shaft, then measure pitch diameter with a micrometer or vernier caliper across the pitch circle. If the numbers match 16 and 1.750"", the S4-3-1751KX is your correct replacement.
Replacement Procedure Summary
- Mark the rear driveshaft orientation at the differential companion flange
- Slide the driveshaft rearward to disengage the slip yoke from the transmission
- Replace the transmission extension housing seal while you have access
- Slide new S4-3-1751KX onto output shaft -- feel for full spline engagement
- Reconnect rear of driveshaft in marked orientation
- Top off transmission fluid; road test and confirm no leaks
Stocked and Ready
Universal Driveshafts maintains on-shelf inventory of 1550 series slip yokes including the S4-3-1751KX. Fast shipping available. Contact us for fleet pricing or bulk orders.
Additional information
| Center u joint to end | 5.375 |
|---|---|
| Notes | Spicer |
| Partn number | S4-3-1751KX |
| Series | 1550 |
| Splines count | 16 |
| Splines dia | 1.750″ |
More Parts from the same Category
Filters Sort results
Reset Apply
Image | Part # | Part Details | Price | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Slip Yoke (100) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | 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 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | Center u joint to end 7.500 Notes Does not fit all Toyota OEM 20 spline stubs. Toyota truck Partn number 1303-20 Series 1351-20 Splines count 20 Splines dia 1.310 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | 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 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | Center u joint to end 4.313 Notes brisitish imports Partn number 1403-16 Series 1100 Splines count 16 Splines dia 1.063 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | Center u joint to end 5.375 Partn number 1703-16 Series 1751 Splines count 16 Splines dia 1.063 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | Center u joint to end 8.016 Series 1210 Splines count 16 Splines dia 1.250 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | Center u joint to end 5.375 Notes short slip yoke. Used on industrial shafts. Partn number 2-3-128kx Series 1310 Splines count 16 Splines dia 1.375 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | Center u joint to end 5.375 Notes short slip yoke. Used on industrial shafts. Partn number 2-3-128kx Series 1310 Splines count 16 Splines dia 1.375 Brand SPICER | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
