GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 43828 Ball Joint Separator

Removal Procedure

    Notice: Use only the recommended tools for separating the ball joint from the knuckle. Failure to use the recommended tools may cause damage to the ball joint and seal.

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  3. Remove the stabilizer shaft link. Refer to Stabilizer Shaft Link Replacement .

  4. Object Number: 155692  Size: SH
  5. Remove the lower ball joint cotter pin (1).
  6. Loosen the lower ball joint retaining nut (2) from the ball stud.

  7. Object Number: 491713  Size: SH

    Notice: Care must be exercised to prevent Tri-Pot joints from being over-extended. When either end of the shaft is disconnected, over-extension of the joint could result in separation of internal components and possible joint failure. Drive axle joint seal protectors should be used any time service is performed on or near the drive axles. Failure to observe this can result in interior joint or seal damage and possible joint failures.

  8. Using J 43828 remove the lower ball joint from the steering knuckle.
  9. Remove the lower ball joint retaining nut.

  10. Object Number: 183653  Size: SH
  11. Remove the lower control arm mounting bolts and nuts.
  12. Remove the lower control arm from the frame.

Installation Procedure


    Object Number: 183653  Size: SH
  1. Install the lower control arm to the frame.
  2. Important: Do not tighten the control arm nuts at this time. Before tightening the control arm mounting nuts, support the weight of the vehicle by the control arms in order to obtain the vehicle design trim heights.

  3. Install the lower control arm bolts and nuts.
  4. Notice: Refer to Fastener Notice in the Preface section.

  5. Install the lower ball joint and retaining nut to the steering knuckle.
  6. Tighten

        • Tighten the lower ball joint retaining nut to 10 N·m (88 lb in plus 150 degrees).
        • Tighten the 2 flats to a minimum of 55 N·m (41 lb ft) in order to align the cotter pin slot.
  7. Install the cotter pin.
  8. Install the stabilizer shaft link. Refer to Stabilizer Shaft Link Replacement .
  9. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  10. Lower the vehicle.
  11. Tighten the control arm nuts in the following sequence:
  12. Tighten

    1. Tighten the rear mounting bolt to 158 N·m (117 lb ft).
    2. Tighten the front mounting nut to 126 N·m (93 lb ft).
  13. Inspect the trim height. Refer to Trim Height Specifications in Suspension General Diagnosis.