Chevrolet Silverado / GMC Sierra. Service manual — part 1298

Fig. 107: View Of New Rear Pillar Section
Courtesy of GENERAL MOTORS CORP.

8. Position the rear pillar 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. 108: Plug Welding Seams
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 .

PICKUP BOX FRONT END PANEL REPLACEMENT

Removal Procedure

1. Remove the pickup box assembly. Refer to Pickup Box Replacement .

2. Restore as much damage as possible.

3. 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. 109: Drilling Out Pickup Box Front Panel Factory Welds
Courtesy of GENERAL MOTORS CORP.

4. Locate and drill out all factory welds. Note the location of the welds for installation of the service part.

5. Remove the front panel.

Installation Procedure

CAUTION: Refer to Approved Equipment for Collision Repair Caution .

2008 Chevrolet Silverado 1500

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

Silverado

Fig. 110: Drilling Pickup Box Front Panel 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 part. Prepare all mating surfaces as necessary.

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

Treatment and Repair .

3. Align the service part to the pickup box.

2008 Chevrolet Silverado 1500

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

Silverado