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 Collision Sectioning 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: 2027256  Size: SH
  7. Create cut lines on the rocker outer panel.

  8. Object Number: 2027257  Size: SH
  9. Cut the panel where sectioning is to be performed.
  10. Note: Do not damage any inner panels or reinforcements.


    Object Number: 2027258  Size: SH
  11. Locate and mark all the necessary factory welds of the rocker outer panel.
  12. Drill all factory welds. Note the number and location of welds for installation of the service assembly.

  13. Object Number: 2027260  Size: SH
  14. Remove the damaged rocker outer panel.

Installation Procedure


    Object Number: 2027261  Size: SH
  1. Cut the rocker outer panel in corresponding locations to fit the remaining original panel. The sectioning joint should be trimmed to allow a gap of one-and-one-half-times the metal thickness at the sectioning joint.
  2. Create a 50 mm (2 in) backing plate from the unused portion of the service part.
  3. Drill 8 mm (5/16 in) along the sectioning cut on the remaining original part. Locate these holes 13 mm (1/2 in) from the edge of part and spaced 40 mm (1½ in) apart.
  4. Prepare all mating surfaces as necessary.
  5. Fit the backing plates halfway into the sectioning joints, clamp in place and plug weld to the vehicle.
  6. Align the rocker outer panel.

  7. Object Number: 2027262  Size: SH
  8. Drill 8 mm (5/16 in) for plug welding along the edges of the rocker outer panel as noted from the original panel.
  9. Clean and prepare the attaching surfaces for welding.
  10. Position the rocker outer panel on the vehicle.
  11. Verify the fit of the rocker outer panel.
  12. Clamp the rocker outer panel into position.

  13. Object Number: 2027263  Size: SH
  14. Plug weld accordingly.
  15. To create a solid weld with minimum heat distortion, make 25 mm (1 in) stitch welds along the seam with 25 mm (1 in) gaps between them. Then go back and complete the stitch weld.
  16. Apply the sealers and anti-corrosion materials to the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair.
  17. Paint the repaired area. Refer to Basecoat/Clearcoat Paint Systems.
  18. Install all related panels and components.
  19. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  20. Enable the SIR system. Refer to SIR Disabling and Enabling.