GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Caution: Refer to Approved Equipment for Collision Repair Caution in the Preface section.

Important: This panel is replaced at factory seams.

  1. Disable the SIR system. Refer to SIR Disabling and Enabling .
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .

  3. Object Number: 1911451  Size: SH

    Caution: Sectioning should be performed only in the recommended areas. Failure to do so may compromise the structural integrity of the vehicle and cause personal injury if the vehicle is in a collision.

  4. Remove all related panels and components.
  5. Repair as much of the damage as possible .
  6. Remove the sealers and anti-corrosion materials from the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair .
  7. Important: Note the number and location of the factory welds for installation of the rear end panel.


    Object Number: 1911453  Size: SH
  8. Locate, mark, and drill out all the necessary factory welds.

  9. Object Number: 1911454  Size: SH
  10. Remove the rear end panel.

Installation Procedure


    Object Number: 1911458  Size: SH

    Important: If the location of the original plug weld holes can not be determined, or if structural weld-thru adhesive is present, space the plug weld holes every 40 mm (1½ in).

  1. Drill 8 mm (5/16 in) plug weld holes in the service part as necessary in the locations noted from the original panel.
  2. Prepare all mating surfaces as necessary.
  3. Apply Weld-Thru Coating to all mating surfaces. Refer to Anti-Corrosion Treatment and Repair .

  4. Object Number: 1911454  Size: SH
  5. Position the rear end panel.

  6. Object Number: 1911460  Size: SH
  7. Plug weld accordingly.
  8. Clean and prepare all of the welded surfaces.
  9. Install all of the related panels and components.
  10. Apply the sealers and anti-corrosion materials to the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair .
  11. Paint the repaired area. Refer to Basecoat/Clearcoat Paint Systems .
  12. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  13. Enable the SIR system. Refer to SIR Disabling and Enabling .