GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

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

  1. Disable the SIR system. Refer to SIR Disabling and Enabling.
  2. Disconnect the negative battery cable.

  3. Object Number: 2025340  Size: SH
  4. Remove all related panels and components.
  5. Restore as much of the damage as possible to factory specifications. Refer to Dimensions - Body.
  6. Warning: Refer to Foam Sound Deadeners Warning in the Preface section.

  7. Note the location and remove the sealers and anti-corrosion materials from the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair.

  8. Object Number: 2025344  Size: SH
  9. Locate, mark, and drill out all upper factory welds attaching the rear rail.

  10. Object Number: 2025345  Size: SH
  11. Locate, mark, and drill out all lower and side factory welds attaching the rear rail.
  12. Remove the damaged rear rail.

Installation Procedure


    Object Number: 866813  Size: SH

    Note: 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 (1 ½ in) apart.

  1. Drill 8 mm (5/16 in) plug weld holes along the rail. Locate these holes 13 mm (1/2 in) from the edge and spaced 40 mm (1 1/2  in) apart.
  2. Prepare all mating surfaces as necessary.
  3. Apply 3M® Weld-Thru coating P/N 05916 or equivalent to all mating surfaces

  4. Object Number: 866819  Size: SH
  5. Position the rear rail service part.

  6. Object Number: 2025344  Size: SH
  7. Plug weld accordingly.

  8. Object Number: 2025345  Size: SH
  9. Complete the remaining plug welds.
  10. Clean and prepare all welded surfaces.
  11. Apply the sealers and anti-corrosion materials to the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair.
  12. Paint and repair the area. Refer to Basecoat/Clearcoat Paint Systems.
  13. Install all related panels and components.
  14. Connect the negative battery cable.
  15. Enable the SIR system. Refer to SIR Disabling and Enabling.