Chevrolet Silverado / GMC Sierra. Service manual — part 1291

Fig. 81: Stepping Tabs
Courtesy of GENERAL MOTORS CORP.

12. Step the tabs (1) inward to allow the door frame opening service section to fit over the original hinge

pillar.

2008 Chevrolet Silverado 1500

2008 ACCESSORIES & EQUIPMENT Collision Repair - - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Installation Procedure

Fig. 82: Cutting Hinge Pillar
Courtesy of GENERAL MOTORS CORP.

1. On the service body side, measure 40 mm (1 9/16 in) down from the large wiring harness hole in the

hinge pillar. Mark a horizontal line. Cut the hinge pillar (1) along this line.

2. Perform additional sectioning procedures as necessary to remove the unused areas of the service part.

2008 Chevrolet Silverado 1500

2008 ACCESSORIES & EQUIPMENT Collision Repair - - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 83: Plug Weld Holes & Service Part
Courtesy of GENERAL MOTORS CORP.

3. Drill 8 mm (5/16 in) plug weld holes along the sectioning cut on the remaining original part (2). Locate

these holes approximately 25 mm (1 in) (a) from the edge and spaced 40 mm (1 1/2 in) apart.

2008 Chevrolet Silverado 1500

2008 ACCESSORIES & EQUIPMENT Collision Repair - - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 84: Drilling Plug Weld Holes
Courtesy of GENERAL MOTORS CORP.

4. Drill 8 mm (5/16 in) plug weld holes in the service part, as necessary, in the locations noted from the

original panel and along the sectioning cut.

5. Prepare all attachment surfaces, as necessary.

6. Apply GM-approved Weld-Thru Coating or equivalent to all mating surfaces. Refer to Anti-Corrosion

Treatment and Repair .

IMPORTANT: If the location of the original plug weld holes cannot be determined, or if

structural weld-thru adhesive was present, space the plug weld holes
every 40 mm (1 1/2 in) apart.

2008 Chevrolet Silverado 1500

2008 ACCESSORIES & EQUIPMENT Collision Repair - - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado