GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Remove the rear differential. Refer to the appropriate procedure:
  3. •  Differential Replacement for the 5L40-E/5L50-E automatic transmission
    •  Propeller Shaft, Differential, and Driveline Support Replacement for the Aisin AR5 manual transmission
  4. Remove the rear lower control arms. Refer to Lower Control Arm Replacement.

  5. Object Number: 1594492  Size: SH
  6. Remove the rear suspension lower control arm reinforcement bolts (1).
  7. Remove the rear suspension lower control arm reinforcement (2).

  8. Object Number: 1594464  Size: SH
  9. Remove the rear crossmember mounting bolts (1).
  10. Remove the rear crossmember (2).

Installation Procedure


    Object Number: 1594464  Size: SH
  1. Install the rear crossmember (2).
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the rear crossmember mounting bolts (1).
  4. Tighten
    Tighten all the support bolts to 100 N·m (74 lb ft).


    Object Number: 1594492  Size: SH
  5. Install the rear suspension lower control arm reinforcement (2).
  6. Install the rear suspension lower control arm reinforcement bolts (1).
  7. Tighten
    Tighten the bolts to 22 N·m (16 lb ft).

  8. Install the rear lower control arms. Refer to Lower Control Arm Replacement.
  9. Install the rear differential. Refer to the appropriate procedure:
  10. •  Differential Replacement for the 5L40-E/5L50-E automatic transmission
    •  Propeller Shaft, Differential, and Driveline Support Replacement for the Aisin AR5 manual transmission
  11. Lower the vehicle.
  12. Inspect for rear wheel alignment and adjust as necessary. Refer to Wheel Alignment Measurement.