Sierra Classic 1500 2WD V8-4.8L (2007)
Rear Brakes (RPO JH7)
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 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.