GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Notice: The front shock absorbers of the vehicle are multifunctional. In addition to contributing to a smooth ride they also provide the only stop to the front suspension when fully extended. Therefore, when servicing the shock absorber, service replacement shock absorbers must be equivalent to original shock absorbers in both extended length and strength. Use of shocks not complying to original equipment or strength could result in suspension over-travel or shock breakage. Suspension over-travel may result in suspension component breakage.

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information. Support the vehicle with suitable safety stands.

  2. Object Number: 160827  Size: SH
  3. Install a jackstand under the lower control arm in order to relieve any tension on the shock absorber.

  4. Object Number: 160522  Size: SH
  5. Remove the upper shock nut. Hold the shock absorber stem with a wrench while backing the nut off.
  6. Remove the retainer.
  7. Remove the grommet.

  8. Object Number: 160514  Size: SH
  9. Remove the lower shock bolts.
  10. 6.1. Pull the shock absorber out from below.
    6.2. The lower bushing and the retainer remain on the stem.

Installation Procedure


    Object Number: 160522  Size: SH
  1. Install the retainer and the insulators on the shock absorber stem. Fully extend the shaft.
  2. Install the shock absorber up through the lower control arm and the spring. Insert the stem end through the hole in the frame bracket.
  3. Install the insulators to the stem.
  4. Install the retainer to the stem.
  5. 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.

  6. Install the upper shock retaining nut.
  7. Tighten
    Tighten the upper shock nut to 16 N·m (12 lb ft), while holding the stem with a wrench.


    Object Number: 160514  Size: SH
  8. Install the lower shock bolts through the pivot holes to the lower control arm holes.
  9. Tighten
    Tighten the lower shock bolts to 33 N·m (24 lb ft).

  10. Remove the safety stands.
  11. Lower the vehicle.