Chevrolet Silverado / GMC Sierra. Service manual — part 1275

Fig. 23: View Of New Section
Courtesy of GENERAL MOTORS CORP.

8. Position the body side to the vehicle using 3-dimensional measuring equipment. Clamp in place.

2008 Chevrolet Silverado 1500

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

Silverado

Fig. 24: Plug Welding Frame
Courtesy of GENERAL MOTORS CORP.

9. Plug weld accordingly.

10. Clean and prepare all welded surfaces.

11. Apply the sealers and anti-corrosion materials to the repair area, as necessary. Refer to Anti-Corrosion

Treatment and Repair .

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

13. Install all related panels and components.

14. 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) .

IMPORTANT: To create a solid weld with minimum heat distortion, make 25 mm (1 in)

stitch welds along the seam with 25 mm (1 in) gaps between them.
Complete the stitch weld.

2008 Chevrolet Silverado 1500

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

Silverado

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

ROOF OUTER PANEL REPLACEMENT

Removal Procedure

1. Disable the SIR system. Refer to SIR Disabling and Enabling .

2. Disconnect 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) .

Fig. 25: View Of Crew Cab
Courtesy of GENERAL MOTORS CORP.

CAUTION: Refer to Approved Equipment for Collision Repair Caution .

CAUTION: Refer to Glass and Sheet Metal Handling Caution .

IMPORTANT: This procedure shows the crew cab pickup; the extended cab and the regular

cab are similar.

2008 Chevrolet Silverado 1500

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

Silverado

3. Remove all related panels and components.

4. Repair as much of the damage as possible 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 .

Fig. 26: Drilling Out Factory Welds
Courtesy of GENERAL MOTORS CORP.

6. Locate and drill out all factory welds. Note the number and location of the welds for installation of the

roof panel.

CAUTION: Refer to Foam Sound Deadeners Caution .

IMPORTANT: Do not damage any inner panels or reinforcements.

2008 Chevrolet Silverado 1500

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

Silverado