GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the front bumper fascia. Refer to Front Bumper Fascia Replacement .
  2. Remove the front impact bar. Refer to Front Bumper Impact Bar Replacement .

  3. Object Number: 428778  Size: SH
  4. Remove the fastener retaining the rear of the front bumper impact bar bracket.
  5. Remove the fasteners retaining the front of the front bumper impact bar bracket.
  6. Remove the front bumper impact bar bracket from the vehicle.

Installation Procedure


    Object Number: 428778  Size: SH
  1. Install the front bumper impact bar bracket to the vehicle.
  2. 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.

  3. Install the fasteners to secure the front of the front bumper impact bar bracket.
  4. Tighten
    Tighten the fasteners to 50 N·m (37 lb ft).

  5. Install the fastener to secure the rear of the front bumper impact bar bracket.
  6. Tighten
    Tighten the fastener to 50 N·m (37 lb ft).

  7. Install the front impact bar. Refer to Front Bumper Impact Bar Replacement .
  8. Install the front bumper fascia. Refer to Front Bumper Fascia Replacement .