gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Pickup Box Cross Sill Replacement - Rear|Page 15664 > < Pickup Box Cross Sill Replacement - Rear|Page 15662
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7. Plug weld cross sill to the sill extension.
8. Clean and prepare all welded surfaces.
9. Apply the sealers and anti-corrosion materials to the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair.

10. Paint and repair the area. Refer to Basecoat/Clearcoat Paint Systems.
11. Install all related panels and components.
12. Install the box assembly.

Pickup Box Cross Sill Replacement - Rear|Page 15664 > < Pickup Box Cross Sill Replacement - Rear|Page 15662