3R82-321 is a Yoke Shaft specifically designed for Auto Trac Transfer cases used in GM K-series 4x4s, Hummer H2, and GM-G Vans from 1998 to 2007. This yoke features a 1.375″ spline diameter and a robust 32 spline count, ensuring compatibility with the corresponding U-joints and yokes. The 3.350″ spline length allows for proper engagement and function within the driveline system.
When installing the 3R82-321, it’s crucial to pay attention to the spline engagement depth and verify phasing with the opposite yoke. Incorrect installation can lead to driveline vibrations or premature wear. This yoke is engineered to handle the specific torque and load requirements of the applications it fits, making it a reliable choice for both fleet maintenance and performance builds.
- Series: 3 R
- 32 Splines ensure a secure fit with compatible U-joints
- 1.375″ spline diameter for optimal connection
- 3.350″ spline length for proper engagement
- Compatible with GM K-series 4x4s and Hummer H2
Choosing the right yoke is critical; using a similar but incorrect part can lead to misalignment and failure. The 3R82-321 yoke shaft is a precise replacement that maintains the integrity of your driveline system.









