GM Service Manual Online
For 1990-2009 cars only

Rear Axle Shaft Seal and/or Bearing Replacement 8.6 Inch Axle W/O JL4, 9.5 Inch Axle

Tools Required

    • J 8092 Universal Driver Handle - 3/4 in - 10
    • J 21128 Axle Pinion Oil Seal Installer (8.6 inch Axle)
    • J 23690 Bearing Installer (8.6 inch Axle)
    • J 2619-01 Slide Hammer
    • J 29709 Wheel Bearing Installer (9.5 inch Axle)
    • J 29712 Wheel Bearing Remover (9.5 inch Axle)
    • J 29713 Axle Seal Installer (9.5 inch Axle)
    • J 44685 Rear Axle Seal and Bearing Remover (8.6 inch Axle)

Removal Procedure

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  3. Remove the rear axle housing cover. Refer to Rear Axle Housing Cover and Gasket Replacement .
  4. Remove the axle shaft. Refer to Rear Axle Shaft Replacement .

  5. Object Number: 688157  Size: SH
  6. Remove the axle shaft seal and the bearing from the axle housing using the J 44685 (8.6 inch axle) (1) and the J 2619-01  (2).

  7. Object Number: 685944  Size: SH
  8. Remove the axle shaft seal and the bearing from the axle housing using the J 29712 (9.5 inch axle).

Installation Procedure


    Object Number: 695758  Size: SH
  1. Install the axle shaft bearing using the J 23690 (8.6 inch axle) (1) or the J 29709 (9.5 inch axle) (1) and the J 8092  (2).
  2. Drive the axle shaft bearing into the axle housing until the tool bottoms against the tube.

  3. Object Number: 695762  Size: SH
  4. Install the axle shaft seal using the J 21128 (8.6 inch axle) or the J 29713 (9.5 inch axle).
  5. Drive the tool into the bore until the axle shaft seal bottoms flush with the tube.
  6. Install the axle shaft. Refer to Rear Axle Shaft Replacement .
  7. Install the rear axle housing cover. Refer to Rear Axle Housing Cover and Gasket Replacement .
  8. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  9. Fill the rear axle. Refer to Rear Axle Lubricant Replacement .
  10. Lower the vehicle.

Rear Axle Shaft Seal and/or Bearing Replacement 8.6 Inch Axle W/JL4

Tools Required

    • J 8092 Universal Driver Handle - 3/4 in - 10
    • J 21128 Axle Pinion Oil Seal Installer
    • J 23690 Bearing Installer
    • J 2619-01 Slide Hammer
    • J 45857 Tone Wheel and/or Bearing Remover

Removal Procedure

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  3. Remove the rear axle housing cover. Refer to Rear Axle Housing Cover and Gasket Replacement .
  4. Remove the axle shaft. Refer to Rear Axle Shaft Replacement .
  5. To remove the seal only, use a suitable seal remover.

  6. Object Number: 889095  Size: SH
  7. To remove the axle shaft seal and the bearing together from the axle housing, use the J 45857  (1) and the J 2619-01  (2).

Installation Procedure


    Object Number: 695758  Size: SH
  1. Install the axle shaft bearing using the J 23690  (1) and the J 8092  (2).
  2. Drive the axle shaft bearing into the axle housing until the tool bottoms against the tube.

  3. Object Number: 885624  Size: SH
  4. Install the axle shaft seal using the J 21128 .
  5. Drive the tool into the bore until the axle shaft seal bottoms flush with the tube.
  6. Install the axle shaft. Refer to Rear Axle Shaft Replacement .
  7. Install the rear axle housing cover. Refer to Rear Axle Housing Cover and Gasket Replacement .
  8. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  9. Fill the rear axle. Refer to Rear Axle Lubricant Replacement .
  10. Lower the vehicle.