GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  2. Object Number: 930291  Size: SH
  3. Remove the trailing arm bracket to body bolts.

  4. Object Number: 929585  Size: SH
  5. If applicable, remove the ABS brake harness from the upper control arm.
  6. Remove the upper control arm to knuckle nut and bolt.

  7. Object Number: 930288  Size: SH
  8. Remove the upper control to support nut and bolt.
  9. Remove the upper control arm.

Installation Procedure


    Object Number: 930285  Size: SH
  1. Install the upper control arm to the knuckle.
  2. Loosely install the upper control arm to knuckle nut and bolt.

  3. Object Number: 930288  Size: SH
  4. Install the upper control to support bolt and cam nut.
  5. Notice: Refer to Fastener Notice in the Preface section.

  6. Tighten the upper control arm to knuckle nut and bolt.
  7. Tighten
    Tighten the bolt to 160 N·m (118 lb ft).

    Important: There are two different upper control arms and upper control arm bolts used on this vehicle. You must identify which is on the vehicle and use the corresponding torque value.

  8. Tighten the upper control arm to support bolt.
  9. Tighten

        • If the bolt is a M12  bolt, tighten the bolt to 110 N·m (81 lb ft).
        • If the bolt is a M14  bolt, tighten the bolt to 160 N·m (118 lb ft).
  10. If applicable, install the ABS harness to the upper control arm.

  11. Object Number: 930291  Size: SH
  12. Push upward on the trailing arm and loosely install the front bolt.
  13. Use a drift to align the remaining bolts.
  14. Tighten
    Tighten the trailing arm bracket to body bolts to 110 N·m (81 lb ft).

  15. Lower the vehicle.
  16. Check the rear alignment. Refer to Wheel Alignment Measurement in Wheel Alignment.