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Rev 022818 

5” OVAL STRAIGHT SIDE BAR  

 99-12 1500-2500-3500 SILVERADO/SIERRA EXT CAB 

5” OVAL STRAIGHT SIDE BAR  

 99-12 1500-2500-3500 SILVERADO/SIERRA REGULAR CAB 

 
IMPORTANT ALERT: GM uses a very strong thread-locking compound on all 
body bolts. Use of an air assisted impact ratchet can cause damage to the 
threads on factory body mount bolts and the internal nut assembly because of 
this thread locking compound.  
We only recommend the use of hand tools to slowly remove and reinstall body 
mount bolts on all GM vehicles.  
 
PROCEDURE: 
 
CRITICAL INFORMATION: If during the removal process, it becomes increasingly 
difficult to unscrew the body mount bolt with hand tools, tighten the bolt several 
rotations to clear the thread locking compound from the threads, then reverse 
direction and continue to unscrew until the body mount bolt is out. Repeat this 
process as necessary on all GM body mount bolts. Use of an appropriate anti-
seize compound is highly recommended for re-installation. Tighten body mount 
bolt to factory torque specifications for your particular model year.  

 

 
  
    
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 

 
 
 

Example of GM factory body mount bolt 

 

 

 
 
 
 
 
 
 
 
 
 

Summary of Contents for A7003S/B

Page 1: ... Flat Washers 1 Driver Left Rear Mounting Bracket 6 10mm Lock Washers 1 Passenger Right Rear Mounting Bracket 4 10mm Hex Nuts 1 Driver Left Front Support Bracket 12 8 1 25mm x 25mm Hex Bolts 1 Passenger Right Front Support Bracket 12 8mm ID x 24mm OD x 2mm Flat Washers 2 Center Support Brackets 12 8mm Lock Washers 2 12 1 75mm x 30mm Hex Bolts 5 Oval Nerf Bar Part No A7003S B Fits 2001 2013 Chevrol...

Page 2: ...of hand tools to slowly remove and reinstall body mount bolts on all GM vehicles PROCEDURE CRITICAL INFORMATION If during the removal process it becomes increasingly difficult to unscrew the body mount bolt with hand tools tighten the bolt several rotations to clear the thread locking compound from the threads then reverse direction and continue to unscrew until the body mount bolt is out Repeat t...

Page 3: ... using the factory hex bolts Figure 1 Do not tighten hardware at this time 3 Locate the two factory holes in the bottom of the frame towards the front of the vehicle Insert 1 10mm Nut Plate Figure 2A into the oval hole and line up the threaded nut with the forward round hole Figure 2B NOTE Nut Plate and Support Bracket are not required on 2011 12 25 3500 models Fig 1 Driver side front mounting bra...

Page 4: ... of the Center Support Bracket with the larger mounting hole between the factory body mount and the Center Mounting Bracket Attach the Support Bracket to the body mount using the included 1 12mm x 30mm Hex Bolt 2 12mm Flat Washers 1 12mm Lock Washer and 1 12mm Hex Nut Figures 5 6 Do not tighten at this time NOTE Larger hole on the Center Support Bracket mounts to body mount 6 Attach the opposite e...

Page 5: ...cket Installation Pictured Fig 7 Complete Installation Front Front NOTE Support Brackets not required on 2011 12 25 3500 Models 10mm x 30mm Hex Bolt 2 10mm Flat Washers 10mm Lock Washer 10mm Hex Nut 2 8mm x 25mm Hex Bolts 2 8mm Lock Washers 2 8mm Flat Washers 12mm x 30mm Hex Bolt 2 12mm Flat Washers 12mm Lock Washer 12mm Hex Nut 12mm x 30mm Hex Bolt 2 12mm Flat Washers 12mm Lock Washer 12mm Hex Nu...

Page 6: ...g White color foam sheet No Parts Identification 1 Passenger Right Rear Bracket marked PR 2 Driver Left Rear Bracket marked DR 3 Passenger Right Center Bracket marked PC 4 Driver Left Center Bracket marked DC 5 Passenger Right Front Bracket marked PF 6 Driver Left Front Bracket marked DF Note This guide is to identify the parts and not a reference for part count For part count refer Parts List Pro...

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