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. Caution: Refer to Fastener Caution in the Preface section.


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

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

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