GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

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

    Warning: Refer to Glass and Sheet Metal Handling Warning in the Preface section.

  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. Remove all related panels and components.
  4. Visually inspect the damage. Repair as much of the damage as possible.
  5. Remove the sealers and anti-corrosion materials from the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair.

  6. Object Number: 2027364  Size: SH
  7. Locate and mark all the necessary factory welds of the rear compartment floor panel.
  8. Note the number and location of weld studs for installation of the service assembly.
  9. Drill all factory welds. Note the number and location of welds for installation of the service assembly.

  10. Object Number: 2027366  Size: SH
  11. Remove the damaged rear compartment floor panel.

Installation Procedure

  1. Align the rear compartment floor panel.

  2. Object Number: 2027367  Size: SH
  3. Drill 8 mm (5/16 in) for plug welding along the edges of the rear compartment floor panel as noted from the original panel.
  4. Clean and prepare the attaching surfaces for welding.
  5. Position the rear compartment floor panel on the vehicle.
  6. Verify the fit of the rear compartment floor panel.
  7. Clamp the rear compartment floor panel into position.

  8. Object Number: 2027368  Size: SH
  9. Plug weld accordingly.

  10. Object Number: 2027369  Size: SH
  11. Drill 8 mm (5/16 in) for plug welding along the edges of the floor panel rear reinforcement, the spare wheel carrier bracket and the rear wheelhouse panel rear brace as noted from the original panel.
  12. Clean and prepare the attaching surfaces for welding.
  13. Position the floor panel rear reinforcement, the spare wheel carrier bracket and the rear wheelhouse panel rear brace on the vehicle.
  14. Verify the fit of the floor panel rear reinforcement, the spare wheel carrier bracket and the rear wheelhouse panel rear brace.

  15. Object Number: 2027370  Size: SH
  16. Plug weld accordingly.
  17. Weld accordingly the weld studs as noted.
  18. Apply the sealers and anti-corrosion materials to the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair.
  19. Paint the repaired area. Refer to Basecoat/Clearcoat Paint Systems.
  20. Install all related panels and components.
  21. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  22. Enable the SIR system. Refer to SIR Disabling and Enabling.