GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.

  1. Raise the vehicle on a hoist.

  2. Object Number: 158304  Size: SH
  3. Support the rear axle in order to relieve the tension from the rear springs using a suitable jack stand.
  4. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  5. Remove the upper retaining bolt from the shackle.
  6. Remove the lower retaining bolt from the shackle.
  7. Remove the shackle from the vehicle.

Installation Procedure


    Object Number: 158304  Size: SH
  1. Install the shackle to the vehicle.
  2. Install the lower retaining bolt to the shackle.
  3. Use a new bolt and a new nut each time the service is performed.

    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.

  4. Install the upper retaining bolt to the shackle.
  5. Use a new bolt and a new nut each time the service is performed.

    Tighten
    Tighten the upper shackle retaining bolt and the lower shackle retaining bolt to 90 N·m (67 lb ft).

  6. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  7. Lower the vehicle.