GM Service Manual Online
For 1990-2009 cars only

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 differential side bearing. Refer to Differential Side Bearings Replacement .

  4. Object Number: 851631  Size: SH

    Important: The differential bearing race must be compressed in order to remove the differential bearing retainer.

  5. Remove the differential bearing retainer by performing the following steps:
  6. 4.1. With the aid of an assistant, push the differential bearing race down towards the differential case in order to relieve the pressure against the differential bearing retainer.
    4.2. Remove the differential bearing retainer.

    Object Number: 851633  Size: SH
  7. Remove the differential bearing race.
  8. Remove the locking differential coil assembly.

Installation Procedure

  1. Lubricate the differential bearing assembly, the differential coil assembly and the differential bearing race with axle lubricant. Use the proper fluid. Refer to Fluid and Lubricant Recommendations .

  2. Object Number: 851633  Size: SH
  3. Install the locking differential coil assembly.
  4. Install the differential bearing race.

  5. Object Number: 851631  Size: SH

    Important: The differential bearing race must be compressed in order to install the differential bearing retainer.

  6. Install the differential bearing retainer by performing the following steps:
  7. 4.1. Install the differential bearing retainer.
    4.2. With the aid of an assistant, push the differential bearing race down towards the differential case in order to compress the differential bearing retainer and differential coil assembly against the locking differential coil plate.
    4.3. Install the differential bearing retainer.

    Make sure the differential bearing retainer is evenly and fully seated in the differential bearing retainer slot before releasing the differential bearing race.

  8. Install the differential side bearing. Refer to Differential Side Bearings Replacement .
  9. Install the differential assembly. Refer to Differential Replacement .
  10. Lower the vehicle.