Chevrolet Silverado / GMC Sierra. Service manual — part 1276

Fig. 27: View Of Damaged Roof Panel
Courtesy of GENERAL MOTORS CORP.

7. Remove the damaged roof panel.

Installation Procedure

2008 Chevrolet Silverado 1500

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

Silverado

Fig. 28: Drilling Plug Weld Holes
Courtesy of GENERAL MOTORS CORP.

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

original panel.

2. Prepare all attachment surfaces as necessary.

Fig. 29: View Of Roof Panel
Courtesy of GENERAL MOTORS CORP.

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

Treatment and Repair .

4. Position the roof panel.

IMPORTANT: If the location of the original plug weld holes can not 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

Fig. 30: Plug Welding Cab
Courtesy of GENERAL MOTORS CORP.

5. Plug weld accordingly.

2008 Chevrolet Silverado 1500

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

Silverado

Fig. 31: Applying Sealer To Repair Area
Courtesy of GENERAL MOTORS CORP.

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 the repair area. Refer to Basecoat/Clearcoat Paint Systems .

9. Install all related panels and components.

10. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection

(w/Single Battery) or Battery Negative Cable Disconnection and Connection (w/Auxiliary Battery)
or Battery Negative Cable Disconnection and Connection (w/Dual Batteries) .

11. Enable the SIR system. Refer to SIR Disabling and Enabling .

ROCKER OUTER PANEL SECTIONING

Removal Procedure

2008 Chevrolet Silverado 1500

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

Silverado