gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Pickup Box Cross Sill Replacement - Rear|Page 9535 > < Pickup Box Cross Sill Replacement - Rear|Page 9533
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11. Remove the side panel.

Installation Procedure

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 3M Weld-Thru Coating, P/N 05916 or equivalent to all mating surfaces.

4. Position the service part on to the bed assembly. 

Pickup Box Cross Sill Replacement - Rear|Page 9535 > < Pickup Box Cross Sill Replacement - Rear|Page 9533