GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
  2. Drain the front differential assembly.

  3. Object Number: 1347764  Size: SH
  4. Remove the front propeller shaft. Refer to Front Propeller Shaft Replacement .

  5. Object Number: 1339815  Size: SH
  6. Remove the front wheel drive shafts. Refer to Wheel Drive Shaft Replacement .

  7. Object Number: 1347766  Size: SH
  8. Remove the electrical connector for the electric motor actuator.

  9. Object Number: 1305845  Size: SH
  10. Remove the vent hose.
  11. Using a transmission jack stand or equivalent, support the front differential assembly.

  12. Object Number: 1339811  Size: SH
  13. Remove the mounting bracket from the vehicle. Refer to Differential Carrier Assembly Bushing and Bracket Replacement .
  14. Remove the front differential assembly from the vehicle.

Installation Procedure


    Object Number: 1339811  Size: SH
  1. Lift the front differential into position.
  2. Install the mounting bracket to the differential housing. Refer to Differential Carrier Assembly Bushing and Bracket Replacement .

  3. Object Number: 1305845  Size: SH
  4. Install the vent hose.
  5. Notice: Refer to Component Fastener Tightening Notice in the Preface section.


    Object Number: 1347767  Size: SH
  6. Install the electric motor actuator .
  7. Tighten
    Tighten the electric motor actuator to 22 N·m (16 lb ft).

  8. Install the electrical connector.

  9. Object Number: 1339815  Size: SH
  10. Install the front wheel drive shafts. Refer to Wheel Drive Shaft Replacement .

  11. Object Number: 1347764  Size: SH
  12. Install the front propeller shaft. Refer to Front Propeller Shaft Replacement .
  13. Fill the front differential assembly with fluid. Refer to Front Axle Lubricant Replacement .
  14. Install the front tires and wheels. Refer to Tire and Wheel Removal and Installation .