GM Service Manual Online
For 1990-2009 cars only

Lower Control Arm Ball Joint Replacement RWD

Tools Required

    • J 9519-E Lower Ball Joint Remover and Installer Set
    • J 23742 Ball Joint Separator

Removal Procedure


    Object Number: 160827  Size: SH

    Caution: Floor jack must remain under the lower control arm during removal and installation to retain the lower control arm in position. Failure to do so could result in personal injury.

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Support the lower control arm with a safety stand.
  3. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.

  4. Object Number: 130899  Size: SH
  5. Remove the lower ball joint cotter pin and the retaining nut.
  6. Break the lower ball joint loose from the steering knuckle using J 23742 .
  7. Remove J 23742 .
  8. Pull the steering knuckle free from the lower ball joint.
  9. Support the steering knuckle in order to prevent the steering knuckle weight from damaging the brake hose.
  10. Remove the rubber grease seal from the lower ball joint.
  11. Remove the lower ball joint grease fitting.

  12. Object Number: 130900  Size: SH
  13. Remove the lower ball joint from the lower control arm using J 9519-E .

Installation Procedure


    Object Number: 130901  Size: SH
  1. Install the lower ball joint to the lower control arm.
  2. Press the lower ball joint into the lower control arm using J 9519-E .
  3. Press in until the ball joint bottoms in the control arm.

  4. Install the grease seal and the grease fitting to the lower ball joint.
  5. • The grease-purge hole of the seal must face inboard.
    • Press the grease seal into place. The seal must be fully seated on the ball joint.
  6. Remove the steering knuckle support.
  7. Install the lower ball joint to the steering knuckle.
  8. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  9. Install the lower ball joint retaining nut.
  10. Tighten
    Tighten the lower ball joint retaining nut to 125 N·m (90 lb ft).

  11. Install a new cotter pin. Tighten the nut up to an additional 1/6 amount in order to insert the cotter pin through the lower ball joint stud. Bend the pin ends against the nut flats.
  12. Using a grease gun, grease to the lower ball joint until grease appears at the lower ball joint grease seal.
  13. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  14. Remove the safety stand from the lower control arm.
  15. Lower the vehicle.
  16. Check the front wheel alignment. Refer to Wheel Alignment Measurement in Wheel Alignment.