Yukon/Denali 2WD V8-6.0L VIN U (2004)
Brake Rotor/Disc: Specifications
Front Brakes JC3/JC4
Rotor Discard Thickness ................................................................................................................................................................ 27.50 mm (1.083 inch)
Rotor Minimum Allowable Thickness After Refinish ..................................................................................................................... 28.0 mm (1.102 inch)
Rotor Thickness (new) ..................................................................................................................................................................... 29.0 mm (1.142 inch)
Rotor Maximum Allowable Lateral Runout .................................................................................................................................... 0.13 mm (0.005 inch)
Rotor Maximum Allowable Scoring ................................................................................................................................................ 1.50 mm (0.059 inch)
Rotor Maximum Allowable Thickness Variation .......................................................................................................................... 0.025 mm (0.001 inch)
Front Brakes JH2 Rotor Discard Thickness ....................................................................................................................................... 27.50 mm (1.083 inch)
Rotor Minimum Allowable Thickness After Refinish ..................................................................................................................... 28.0 mm (1.102 inch)
Rotor Thickness (new) ..................................................................................................................................................................... 29.0 mm (1.142 inch)
Rotor Maximum Allowable Lateral Runout .................................................................................................................................... 0.13 mm (0.005 inch)
Rotor Maximum Allowable Scoring ................................................................................................................................................ 1.50 mm (0.059 inch)
Rotor Maximum Allowable Thickness Variation .......................................................................................................................... 0.025 mm (0.001 inch)
Front Brakes JH6 Rotor Discard Thickness ....................................................................................................................................... 36.50 mm (1.437 inch)
Rotor Minimum Allowable Thickness After Refinish ..................................................................................................................... 37.0 mm (1.457 inch)
Rotor Thickness (new) ..................................................................................................................................................................... 38.0 mm (1.496 inch)
Rotor Maximum Allowable Lateral Runout .................................................................................................................................... 0.13 mm (0.005 inch)
Rotor Maximum Allowable Scoring ................................................................................................................................................ 1.50 mm (0.059 inch)
Rotor Maximum Allowable Thickness Variation .......................................................................................................................... 0.025 mm (0.001 inch)
Rear Brakes JC4
Rotor Discard Thickness .................................................................................................................................................................. 78.5 mm (1.122 inch)
Rotor Minimum Allowable Thickness After Refinish ..................................................................................................................... 29.0 mm (1.142 inch)
Rotor Thickness (new) ..................................................................................................................................................................... 30.0 mm (1.181 inch)
Rotor Maximum Allowable Lateral Runout .................................................................................................................................... 0.13 mm (0.005 inch)
Rotor Maximum Allowable Scoring ................................................................................................................................................ 1.50 mm (0.059 inch)
Rotor Maximum Allowable Thickness Variation .......................................................................................................................... 0.025 mm (0.001 inch)
Rear Brakes JH2
Rotor Discard Thickness .................................................................................................................................................................. 28.5 mm (1.122 inch)
Rotor Minimum Allowable Thickness After Refinish ..................................................................................................................... 29.0 mm (1.142 inch)
Rotor Thickness (new) ..................................................................................................................................................................... 30.0 mm (1.181 inch)
Rotor Maximum Allowable Literal Runout ..................................................................................................................................... 0.13 mm (0.005 inch)
Rotor Maximum Allowable Scoring ................................................................................................................................................ 1.50 mm (0.059 inch)
Rotor Maximum Allowable Thickness Variation .......................................................................................................................... 0.025 mm (0.001 inch)
Rear Brakes JH6
Rotor Discard Thickness .................................................................................................................................................................. 27.5 mm (1.083 inch)
Rotor Minimum Allowable Thickness After Refinish ..................................................................................................................... 28 0 mm (1.102 inch)
Rotor Thickness (new) ..................................................................................................................................................................... 29.0 mm (1.142 inch)
Rotor Maximum Allowable Lateral Runout .................................................................................................................................... 0.13 mm (0.005 inch)
Rotor Maximum Allowable Scoring ................................................................................................................................................ 1.50 mm (0.059 inch)
Rotor Maximum Allowable Thickness Variation .......................................................................................................................... 0.025 mm (0.001 inch)
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.