GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 43828 Ball Joint Separator

The lower control arm ball joint is serviced only with the control arm and cannot be serviced separately.

To separate the ball joint from the steering knuckle, use the following procedure.

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

  2. Object Number: 402793  Size: SH
  3. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  4. Remove the cotter pin (1) from the ball joint stud.
  5. Remove the nut (2) from the ball joint stud.

  6. Object Number: 475970  Size: SH
  7. Use J 43828 to separate the ball joint from the steering knuckle.

Installation Procedure


    Object Number: 402793  Size: SH

    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.

  1. Attach the ball stud to the steering knuckle
  2. Install the nut to the ball stud.
  3. Tighten
    Tighten the ball joint nut to 10 N·m (88 lb in). Then tighten an additional 150 degrees. For cotter pin alignment, tighten up to, but do not exceed 60 degrees additional rotation. Do not loosen nut for cotter pin insertion.

  4. Install the cotter pin (1).
  5. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  6. Tighten
    Tighten wheel nuts to 125 N·m (80 lb ft).