GM Service Manual Online
For 1990-2009 cars only

Final Drive Assembly Replacement with Parking Gear Replacement

Removal Procedure

  1. Remove the case extension and set aside. Refer to Case Extension Replacement .
  2. Remove the scavenger pipe and set aside.

  3. Object Number: 97514  Size: SH
  4. Using a torque wrench, remove the 4 differential housing bolts. The transmission must be in P (Park) with the differential locked in place. If you can rotate the differential, turn the manual shaft counterclockwise to the P (Park) position. The actuator rod will stick out of the case.
  5. Remove the differential housing.

  6. Object Number: 97501  Size: SH
  7. Remove the following parts:
  8. 5.1. The snap ring
    5.2. The left-side differential gear
    5.3. The thrust washer

    Object Number: 97511  Size: SH
  9. Remove the following parts:
  10. 6.1. The final drive carrier
    6.2. The thrust bearing
    6.3. The sun gear

    Object Number: 97515  Size: SH
  11. Remove the snap ring and the final drive internal gear.

  12. Object Number: 97516  Size: SH
  13. Remove the following parts:
  14. 8.1. The snap ring
    8.2. The parking gear
    8.3. The thrust bearing

Installation Procedure


    Object Number: 97516  Size: SH
  1. Install the following parts:
  2. 1.1. The thrust bearing
    1.2. The parking gear
    1.3. The snap ring

    Object Number: 97515  Size: SH
  3. Install the final drive internal gear and the snap ring.

  4. Object Number: 97511  Size: SH
  5. Install the following parts:
  6. 3.1. The sun gear
    3.2. The thrust bearing
    3.3. The final drive carrier

    Object Number: 97501  Size: SH
  7. Install the following parts:
  8. 4.1. The thrust washer
    4.2. The left-side differential gear
    4.3. The snap ring

    Object Number: 97514  Size: SH
  9. Install the differential housing.
  10. Install the 4 differential bolts.
  11. Install the scavenger pipe.
  12. Install the case extension. Refer to Case Extension Replacement .