Chevrolet Silverado / GMC Sierra. Service manual - part 1271

Fig. 9: View Of Damaged Frame Section 
Courtesy of GENERAL MOTORS CORP. 

7. Remove the damaged frame section.  

Installation Procedure 

 

2008 Chevrolet Silverado 1500 

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

Silverado

  

Fig. 10: Grinding Existing Frame Rail Seam To Taper Seam 
Courtesy of GENERAL MOTORS CORP. 

1. Grind the existing frame rail seam to taper seam at a 45 degree angle.  

2. Prepare all of the attaching surfaces as necessary.  

3. Apply the weld-thru primer to all of the welded surfaces. 

 

2008 Chevrolet Silverado 1500 

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

Silverado

  

Fig. 11: Positioning New Frame Section To Existing Frame 
Courtesy of GENERAL MOTORS CORP. 

4. Position the service frame section to the existing frame and clamp in place. 

 

2008 Chevrolet Silverado 1500 

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

Silverado

  

Fig. 12: Welding The Frame Sections 
Courtesy of GENERAL MOTORS CORP. 

5. Continuous-weld the upper and lower horizontal joints threw each corner.  

6. Continuous-weld the inner and outer vertical joints from corner to corner. 

IMPORTANT: Verify the frame measurements 3-dimensionally to ensure proper position 

of the service frame.

 

2008 Chevrolet Silverado 1500 

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

Silverado