Pickup Box Outer Side Panel Replacement Weld-on

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

1. Remove the box assembly. Refer to Pickup Box Replacement.
2. Remove the endgate. Refer to Endgate Replacement.
3. Remove the wheelhouse liner.
4. Repair as much of the damage as possible, according to factory specifications.
5. Note the location and remove the sealers and anti-corrosion materials from the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair.
6. Note the number and location of all spot welds to be drilled out for installation of the service part.



7. Locate and drill out all factory welds.



8. Locate and drill out the spot welds for the rear filler (rear filler is part of the replacement side panel).



9. Remove the side panel.

1. Drill 8 mm (5/16 in) plug weld holes in the service part as noted.
2. Prepare all 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 service part onto the bed assembly.



5. Plug weld as necessary.
6. Clean and prepare all welded surfaces.
7. Apply the sealers and anti-corrosion materials to the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair.
8. Paint and repair the area. Refer to Basecoat/Clearcoat Paint Systems.
9. Install the wheelhouse liner.
10. Install the endgate. Refer to Endgate Replacement.
11. Install the box assembly. Refer to Pickup Box Replacement.

Pickup Box Outer Side Panel Replacement Bond-on

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

1. Remove the box assembly. Refer to Pickup Box Replacement
2. Remove the endgate. Refer to Endgate Replacement
3. Remove the wheelhouse liner.
4. Repair as much of the damage as possible, according to factory specifications.
5. Note the location and remove the sealers and anti-corrosion materials from the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair
6. Note the number and location of all spot welds to be drilled out for installation of the service part.



7. Locate and drill out all factory welds.



8. Locate and drill out the spot welds for the rear filler (rear filler is part of the replacement side panel).



9. Remove the side panel.

1. Grind the surface of the bed assembly mating flanges to bare steel. Do not damage the corners or thin the metal during the grinding process.



2. Grind the mating flanges of the service side panel to remove the E-coating. Do not damage the corners or thin the metal during the grinding operation.
3. Clean the mating surfaces.




Note: The adhesive has a 40-50 minute working time. Do not allow the adhesive to cure prior to installing the service side panel.

4. Apply a 3 to 6 mm (1/8 to 1/4 in) bead of metal panel bonding adhesive to both of the mating surfaces.



5. Using a small acid brush, spread a coat of adhesive to both of the mating surfaces. Cover all of the bare metal to ensure corrosion protection.



6. Apply a 9 to 13 mm (3/8 to 1/2 in) bead of metal panel bonding adhesive to the mating surface of the service side panel.




Note: Do NOT pull the panels apart after you have joined the panels together. Slide the panels against each other to realign the panels.

7. Position the service side panel to the bed assembly.
8. Clamp the service side panel into position.
9. Using lacquer thinner remove the excess adhesive from the bed side panel area.
10. Apply the sealers and anti-corrosion materials to the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair.
11. Paint the repair area. Refer to Basecoat/Clearcoat Paint Systems.
12. Install the wheelhouse liner.
13. Install the endgate. Refer to Endgate Replacement.
14. Install the box assembly. Refer to Pickup Box Replacement.