GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 300376  Size: SH

    Important: Do not remove both liftgate side bumper bolts at the same time. This will cause the backing plate to fall into the body, resulting in additional time to perform the repair.

  1. Remove the lower side bumper bolt.
  2. Loosen the upper side bumper bolt in order to rotate the side bumper and spacer (if equipped) away from the lower side bumper bolt hole.
  3. Install the lower side bumper bolt.
  4. Tighten the bolt in order to hold the backing place in place.
  5. Remove the upper side bumper bolt.
  6. Remove the spacer (if equipped).
  7. Remove the side bumper.

Installation Procedure


    Object Number: 300376  Size: SH
  1. Install the side bumper.
  2. Install the spacer (if equipped).
  3. Install the upper side bumper bolt.
  4. Rotate the lower side bumper bolt until the threaded hole is properly aligned.
  5. Remove the lower side bumper bolt.
  6. Rotate the side bumper and spacer (if equipped) in order to align the threaded hole in the backing plate.
  7. 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.

  8. Install the lower side bumper bolt.
  9. Tighten
    Tighten the bolt to 22 N·m (16 lb ft).