GM Service Manual Online
For 1990-2009 cars only

    Important: It is not necessary to remove the rear axle assembly for overhaul of the rear axle components because this can be done in the vehicle. If you are replacing the rear axle housing, remove the rear axle assembly from the vehicle and overhaul the assembly on the bench. If the rear axle housing is damaged, use the following procedure in order to remove and install the rear axle housing:

  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Support the rear axle with an adjustable lifting device.
  3. Remove rear torque arm. Refer to Torque Arm Replacement in Rear Suspension.
  4. Remove propeller shaft from vehicle. Refer to One-Piece Propeller Shaft Replacement or Two-Piece Propeller Shaft Replacement in Propeller Shaft.
  5. If the rear axle housing is being replaced, remove the rear axle assembly from the vehicle. Refer to Rear Axle Replacement .
  6. Remove the rear axle cover and gasket from housing. Refer to Rear Axle Housing Cover and Gasket Replacement .
  7. Remove the axle shafts. Refer to Axle Shaft Replacement .
  8. Remove the differential case from housing. Refer to Differential Carrier Replacement .
  9. Remove the differential drive pinion gear and bearing races from housing. Refer to Drive Pinion Assemble .
  10. Inspect all components for excessive wear and replace as necessary.