Express 1500 AWD V8-5.3L (2008)
Brake Rotor/Disc: Specifications
Front Brake JH5
Rotor Discard Thickness * ............................................................................................................................................................... 27.50 mm (1.083 in)
Rotor Minimum Allowable Thickness After Refinish ........................................................................................................................ 28.0 mm (1.102 in)
Rotor Thickness New ......................................................................................................................................................................... 29.0 mm (1.142 in)
Rotor Maximum Allowable Lateral Runout ....................................................................................................................................... 0.13 mm (0.005 in)
Rotor Maximum Allowable Scoring ................................................................................................................................................... 1.50 mm (0.059 in)
Rotor Maximum Allowable Thickness Variation ............................................................................................................................. 0.025 mm (0.001 in)
Front Brake JH6
Rotor Discard Thickness * ............................................................................................................................................................... 36.50 mm (1.437 in)
Rotor Minimum Allowable Thickness After Refinish ........................................................................................................................ 37.0 mm (1.457 in)
Rotor Thickness New ......................................................................................................................................................................... 38.0 mm (1.496 in)
Rotor Maximum Allowable Lateral Runout ....................................................................................................................................... 0.13 mm (0.005 in)
Rotor Maximum Allowable Scoring ................................................................................................................................................... 1.50 mm (0.059 in)
Rotor Maximum Allowable Thickness Variation ............................................................................................................................. 0.025 mm (0.001 in)
Front Brake JH7
Rotor Discard Thickness * ............................................................................................................................................................... 36.50 mm (1.437 in)
Rotor Minimum Allowable Thickness After Refinish ........................................................................................................................ 37.0 mm (1.457 in)
Rotor Thickness New ......................................................................................................................................................................... 38.0 mm (1.496 in)
Rotor Maximum Allowable Lateral Runout ....................................................................................................................................... 0.13 mm (0.005 in)
Rotor Maximum Allowable Scoring ................................................................................................................................................... 1.50 mm (0.059 in)
Rotor Maximum Allowable Thickness Variation ............................................................................................................................. 0.025 mm (0.001 in)
Rear Brake JH5
Rotor Discard Thickness * ............................................................................................................................................................... 28.50 mm (1.122 in)
Rotor Minimum Allowable Thickness After Refinish ....................................................................................................................... 29.0 mm (1.142 in)
Rotor Thickness New ......................................................................................................................................................................... 30.0 mm (1.181 in)
Rotor Maximum Allowable Lateral Runout ....................................................................................................................................... 0.13 mm (0.005 in)
Rotor Maximum Allowable Scoring ................................................................................................................................................... 1.50 mm (0.059 in)
Rotor Maximum Allowable Thickness Variation ............................................................................................................................. 0.025 mm (0.001 in)
Rear Brake JH6
Rotor Discard Thickness * ............................................................................................................................................................... 27.50 mm (1.083 in)
Rotor Minimum Allowable Thickness After Refinish ........................................................................................................................ 28.0 mm (1.102 in)
Rotor Thickness New ......................................................................................................................................................................... 29.0 mm (1.142 in)
Rotor Maximum Allowable Lateral Runout ....................................................................................................................................... 0.13 mm (0.005 in)
Rotor Maximum Allowable Scoring ................................................................................................................................................... 1.50 mm (0.059 in)
Rotor Maximum Allowable Thickness Variation ............................................................................................................................. 0.025 mm (0.001 in)
Rear Brake JH7
Rotor Discard Thickness * ................................................................................................................................................................. 28.5 mm (1.122 in)
Rotor Minimum Allowable Thickness After Refinish ........................................................................................................................ 29.0 mm (1.142 in)
Rotor Thickness New ......................................................................................................................................................................... 30.0 mm (1.181 in)
Rotor Maximum Allowable Lateral Runout ....................................................................................................................................... 0.13 mm (0.005 in)
Rotor Maximum Allowable Scoring ................................................................................................................................................... 1.50 mm (0.059 in)
Rotor Maximum Allowable Thickness Variation ............................................................................................................................. 0.025 mm (0.001 in)
*
All brake rotors have a discard dimension cast into them. Replace any rotor that does not meet this specification. After refinishing the rotor,
replace any rotor that does not meet the minimum thickness specifications.