Chevrolet Silverado / GMC Sierra. 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

  

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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

  

Microsoft 

 

Friday, August 21, 2009 2:20:59 PM

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© 2005 Mitchell Repair Information Company, LLC. 

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

  

Microsoft 

 

Friday, August 21, 2009 2:20:59 PM

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© 2005 Mitchell Repair Information Company, LLC. 

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

  

Microsoft 

 

Friday, August 21, 2009 2:20:59 PM

Page 33 

© 2005 Mitchell Repair Information Company, LLC.