1350 Forged U-Bolt Pinion Yoke for GM 14-Bolt - 30 Spline
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The 1350 Forged U-Bolt Pinion Yoke for GM 14-Bolt is a heavy-duty replacement yoke for GM 10.5" 14-Bolt axles using a 30-spline pinion and 1350 series U-joint. Its forged construction is built for the torque and shock loads found in rock crawlers, rock bouncers, trail rigs, and other high-load drivetrain applications.
The U-bolt retention design is a major advantage for an off-road axle because it securely captures the U-joint while remaining straightforward to service. Instead of the small bolts used with traditional strap-style yokes, the U-bolts can be removed and replaced without dealing with broken or seized strap bolts—making this a strong combination of driveline strength and trail-side serviceability.
Includes:
- (1) 1350 Forged U-Bolt Pinion Yoke
- (2) U-Bolts
- U-Bolt Nuts & Lock Washers
Specifications
| Specification | Details |
|---|---|
| Product Type | Pinion Yoke |
| Axle Platform | GM 14-Bolt |
| Ring Gear Diameter | 10.5" |
| U-Joint Series | 1350 |
| U-Joint Retention | U-Bolt |
| Pinion Spline Count | 30 |
| Spline Pressure Angle | 37.5° |
| Ground Hub Diameter | 2.200" |
| Length Through Bore | 1.630" |
| Centerline of Joint to End of Spline | 3.550" |
| U-Joint Retaining Width | 3.625" |
| U-Joint Bearing Diameter | 1.188" |
| Maximum Joint Angle | 22° |
| Construction | Forged |
Fitment
Designed For:
- GM 10.5" 14-Bolt axle applications
- 30-spline pinion shafts
- 1350 series driveshaft U-joints
- Off-road and heavy-duty driveline builds
- Custom GM 14-Bolt axle assemblies
Fitment Notes:
- Verify the axle is a GM 10.5" 14-Bolt before ordering.
- Requires a compatible 30-spline pinion shaft.
- Designed for a 1350 series U-joint with a 3.625" retaining width and 1.188" bearing cap diameter.
- Uses U-bolt retention rather than conventional U-joint straps.
- Verify driveshaft U-joint series before installation.
- Maximum operating angle is listed at 22°; actual driveline operating angle should be determined by the complete suspension and driveshaft configuration.
FAQ
What GM 14-Bolt does this pinion yoke fit?
This yoke is designed for compatible GM 10.5" 14-Bolt axle applications using a 30-spline pinion shaft. Verify the differential and pinion spline count before ordering.
What size U-joint does this yoke use?
This yoke is designed for a 1350 series U-joint with a 3.625" retaining width and 1.188" bearing cap diameter.
Why use a U-bolt yoke instead of a strap-style yoke?
A U-bolt yoke captures the U-joint bearing caps with two U-bolts rather than small straps and retaining bolts. For off-road builds, this provides a simple, serviceable design and eliminates the small strap bolts that can become damaged, seized, or broken during hard use.
Why use a forged pinion yoke?
The pinion yoke transfers driveline torque from the driveshaft into the differential and is subjected to repeated shock loading. Forged construction makes this yoke well suited to high-load applications such as large tires, low gearing, rock crawling, and high-horsepower off-road builds.
Will this yoke work with my existing driveshaft?
It will work when the driveshaft uses a compatible 1350 series U-joint and the axle uses the correct 30-spline GM 14-Bolt pinion. If the driveshaft uses a different U-joint series, the driveshaft or U-joint configuration may need to be changed.
