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

1. Remove all related panels and components.
2. Restore as much of the damage as possible to the factory specifications.
3. Note the location and remove the following materials, as necessary:

•	The sealers

•	The sound deadeners

•	The anti-corrosion materials





Note: Do not damage any of the inner panels or the reinforcements.

4. Locate, and drill out all of the factory welds. Note the number and location of the welds for the installation of the service part.



5. Remove the damaged quarter filler.

Note: In any area with excessive damage, space the plug weld holes every 40 mm (1½ in) apart.

1. Drill 8 mm (0.3 in) plug weld holes in the service part as necessary in the locations noted from the original panel.



2. Prepare all of the mating surfaces as necessary.
3. Apply GM-approved Weld-Thru Coating or equivalent to all mating surfaces. Refer to Anti-Corrosion Treatment and Repair.
4. Position the quarter lower filler.



5. Plug weld accordingly.



6. Clean and prepare all of the welded surfaces.
7. Apply the following products, as necessary:

•	The sound deadening materials

•	An approved anti-corrosion primer

•	The sealers and refinish as necessary

8. Install all of the related panels and components.