GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. J 28467-360 Engine Support Fixture
  2. J 28467-90 Engine Support Fixture Adapter
  3. J 36462 Engine Support Adapter Leg
  1. Disconnect the electrical cooling fans. Refer to Electric Cooling Fan in Engine Cooling.
  2. Remove the accessory drive belt.
  3. • For the 3.1L engine, refer to Drive Belt Replacement in Engine Mechanical.
    • For the 3.4L engine, refer to Drive Belt Replacement in Engine Mechanical.
    • For the 3.8L engine, refer to Drive Belt Replacement in Engine Mechanical.
  4. Drain the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
  5. Remove the heater hose pipe at the intake manifold.
  6. Position the J 28467-360 , J 28467-90 , and J 36462 .
  7. Raise and suitably support the vehicle. Refer to General Vehicle Lifting and Jacking in General Information.
  8. Refer to Wheel Removal in Tires and Wheels in order to remove the front tires.
  9. Remove the upper half of the right engine splash shield.
  10. Remove the catalytic converter. Refer to Catalytic Converter Replacement in Exhaust System.
  11. Remove the frame. Refer to Frame in Body Dimensions, Frame and Underbody.
  12. Lower the vehicle.
  13. Lower the powertrain 3 inches using an engine support fixture.
  14. Remove both of the drive axles.
  15. Support the drive axles to the body. Refer to Drive Axle in Drive Axle On-Vehicle Service.
  16. Remove the case extension housing. Refer to Case Extension Replacement .
  17. Remove the output shaft snap ring. Refer to the Output Shaft Disassemble .
  18. Remove the carrier.
  19. Remove the differential.

  20. Object Number: 99933  Size: SH
  21. Disassemble the following components, if necessary:
  22. 19.1. The parking system. Refer to Park System Components Disassemble .
    19.2. The sun gear and planetary gear. Refer to Reaction Sun Gear and Manual 2-1 Band Disassemble .
    19.3. The differential pinion gears and side gears. Refer to Differential Carrier Internal Gear Disassemble .

Installation Procedure

  1. J 28467-360 Engine Support Fixture
  2. J 28467-90 Engine Support Fixture Adapter
  3. J 36462 Engine Support Adapter Leg

    Object Number: 99933  Size: SH
  1. Assemble the following components, if necessary:
  2. 1.1. The parking system. Refer to Park System Components Assemble .
    1.2. The sun and planetary gears. Refer to Reaction Sun Gear and Drum Assemble .
    1.3. The differential pinion and side gears. Refer to Differential Carrier Internal Gear Assemble .
  3. Install the carrier.
  4. Install the differential.

  5. Object Number: 99931  Size: SH
  6. Install the output shaft snap ring.
  7. Install the case extension housing. Refer to Case Extension Replacement .
  8. Measure the final drive end play. Refer to the Differential Carrier End Play Check .
  9. Remove both drive axles. Refer to Drive Axle in Drive Axle On-Vehicle Service.
  10. Raise the powertrain 3 inches using an engine support fixture.
  11. Raise and suitably support the vehicle. Refer to General Vehicle Lifting and Jacking in General Information.
  12. Install the frame. Refer to Frame in Body Dimensions, Frame and Underbody.
  13. Install the catalytic converter. Refer to Catalytic Converter Replacement in Exhaust System.
  14. Install the upper half of the right engine splash shield.
  15. Refer to Wheel Removal in Tires and Wheels in order to install the front tire.
  16. Lower the vehicle.
  17. Remove J 28467-360 , and J 28467-90 and the J 36462 .
  18. Install the heater hose pipe at the intake manifold.
  19. Refill the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
  20. Install the accessory drive belt.
  21. • For the 3.1L engine, refer to Drive Belt Replacement in Engine Mechanical.
    • For the 3.4L engine, refer to Drive Belt Replacement in Engine Mechanical.
    • For the 3.8L engine, refer to Drive Belt Replacement in Engine Mechanical.
  22. Connect the electric cooling fans. Refer to Electric Cooling Fan in Engine Cooling.