GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 2619-01 Slide Hammer
    • J 45859 Axle Remover

Removal Procedure


    Object Number: 156409  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
  3. Remove the brake caliper. Refer to Rear Brake Caliper Replacement .
  4. Remove the rear cover and the gasket. Refer to Rear Axle Housing Cover and Gasket Replacement .
  5. Remove the pinion shaft locking bolt.

  6. Object Number: 156410  Size: SH
  7. On axles without a locking differential, remove the pinion shaft.

  8. Object Number: 391222  Size: SH
  9. Push the flange of the axle shaft (1) toward the differential.
  10. Remove the C-lock (4) from the button end of the axle shaft (1).
  11. Important: When removing the axle shaft, do not rotate the shaft. Rotating the shaft will misalign the gears. Misaligning the gears will make the assembly difficult.

  12. Remove the axle shaft (1) from the housing (5).

  13. Object Number: 885619  Size: SH
  14. If the axle is difficult to remove, use the J 45859  (1) and the J 2619-01  (2) to remove the axle shaft from the housing.

Installation Procedure


    Object Number: 391222  Size: SH

    Important: Carefully insert the axle shaft in order to not damage the seal.

  1. Install the axle shaft (1) into the rear axle housing (5).
  2. Slide the axle shaft (1) into place allowing the splines to engage the differential side gear.
  3. Place the lock (4) on the button end of the axle shaft (1).
  4. Pull the shaft flange outward in order to seat the lock in the differential gear.

  5. Object Number: 156409  Size: SH
  6. Align the hole in the pinion shaft with the bolt hole in the differential case.
  7. Notice: Refer to Fastener Notice in the Preface section.

  8. Install the new pinion shaft locking bolt.
  9. Tighten
    For the 8.6 inch axle, tighten the pinion shaft locking bolt to 25 N·m (187 lb ft).

  10. Install the rear cover and the gasket. Refer to Rear Axle Housing Cover and Gasket Replacement .
  11. Install the brake caliper. Refer to Rear Brake Caliper Replacement .
  12. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
  13. Fill the rear axle. Use the proper fluid. Refer to Approximate Fluid Capacities and Fluid and Lubricant Recommendations .
  14. Lower the vehicle.