GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 22536 Pinion Driver
    • J 22912-B Split-Plate Bearing Puller
    • J 42176 Universal Driver Handle - Non-Threaded
    • J 45703 Pinion Bearing Race Remover - Dana 248
    • J 45704 Pinion Bearing Race Installer - Dana 248
    • J 45705 Pinion Bearing Race Remover - Dana 248/267
    • J 7818 Inner Bearing Race Installer
    • J 8092 Universal Drive Handle - ¾ in - 10

Removal Procedure

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the differential assembly. Refer to Differential Replacement .
  3. Remove the pinion yoke and the pinion oil seal. Refer to Front Differential Drive Pinion Flange/Yoke, Seal, and Dust Deflector Replacement .

  4. Object Number: 815631  Size: SH
  5. Remove the thrust washer.

  6. Object Number: 683960  Size: SH
  7. Install the J 22536 as shown.
  8. Ensure that the J 22536 is firmly seated on the pinion.

  9. Drive the pinion out using the J 22536 and a hammer.
  10. Strike the J 22536 slowly. Do not let the pinion fall out of the front axle housing.

  11. Remove the pinion preload shims from the drive pinion and set aside.

  12. Object Number: 815472  Size: SH
  13. Remove the inner pinion bearing cup and the oil deflector using the J 45703  (2) and the J 42176  (1).
  14. Remove the outer pinion bearing cup using the J 45705 and the J 42176 .

  15. Object Number: 680110  Size: SH
  16. Remove the inner pinion bearing using the J 22912-B and a hydraulic press.
  17. Remove the pinion position shim.

Installation Procedure


    Object Number: 815458  Size: SH
  1. Install the oil deflector into the inner pinion cup bore.

  2. Object Number: 815642  Size: SH
  3. Install the inner pinion bearing cup using the J 45704  (2) and the J 8092  (1).

  4. Object Number: 815636  Size: SH
  5. Install the outer pinion bearing cup using the J 7818  (2) and the J 8092  (1).
  6. Determine the pinion position shim thickness and the pinion preload shim thickness for the drive pinion. Refer to Pinion Depth Adjustment .
  7. Install the differential assembly. Refer to Differential Replacement .
  8. Fill the axle with lubricant. Use the proper fluid. Refer to Front Axle Lubricant Replacement .
  9. Lower the vehicle.