GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the rear tires and wheels. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.

  3. Object Number: 738841  Size: SH
  4. Drill out the plastic rivet from the rear fascia extension corner to the splash shield.
  5. Remove the rear bumper fascia extension screw from the rear fascia extension corner to the splash shield.

  6. Object Number: 739305  Size: SH
  7. Remove the rear bumper fascia extension lower screw from the lower rear fascia to splash shield.

  8. Object Number: 739303  Size: SH
  9. Drill out the rivets from the lower rear end of the rear fascia extension.

  10. Object Number: 643501  Size: SH
  11. Remove the spring clips from the fascia extension.

  12. Object Number: 643498  Size: SH
  13. Remove the fascia extension.

Installation Procedure


    Object Number: 643498  Size: SH
  1. Install the fascia extension onto the fascia.

  2. Object Number: 643501  Size: SH
  3. Install the spring clips through the tabs in the fascia extension.

  4. Object Number: 739303  Size: SH
  5. Using new plastic rivets, install the plastic rivets to the lower rear end of the rear fascia extension.
  6. 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.


    Object Number: 739305  Size: SH
  7. Install the rear bumper fascia extension lower screw to the lower rear fascia and splash shield.
  8. Tighten
    Tighten the rear bumper fascia extension lower screw to 2 N·m (18 lb in).


    Object Number: 738841  Size: SH
  9. Using a new plastic rivet, install the plastic rivet to the rear fascia extension corner to the splash shield.
  10. Install the rear bumper fascia extension screw to the rear fascia extension corner to the splash shield.
  11. Tighten
    Tighten the rear bumper fascia extension screw to 2 N·m (18 lb in).

  12. Install the rear wheels and tires. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  13. Lower the vehicle.