Brakes and Traction Control: Specifications

Front Brake Rotors
^ Rotor Diameter (JL9) 323.0 mm (12.72 inch)
^ Rotor Diameter (J55) 330.0 mm (12.99 inch)
^ Rotor Discard Thickness (JL9) 28.6 mm (1.126 inch)
^ Rotor Discard Thickness (J55)* 36.5 mm (1.437 inch)
^ Rotor Maximum Allowable Assembled Lateral Runout (JL9) 0.06 mm (0.002 inch)
^ Rotor Maximum Allowable Assembled Lateral Runout (J55) 0.05 mm (0.002 inch)
^ Rotor Maximum Allowable Scoring (JL9, J55) 1.50 mm (0.059 inch)
^ Rotor Maximum Allowable Thickness Variation (JL9, J55) 0.025 mm (0.001 inch)
^ Rotor Minimum Allowable Thickness after Refinishing (JL9) 29.6 mm (1.165 inch)
^ Rotor Minimum Allowable Thickness after Refinishing (J55) 37.0 mm (1.457 inch)
^ Rotor Thickness (New, JL9) 30.0 mm (1.181 inch)
^ Rotor Thickness (New, J55) 38.00 mm (1.496 inch)

Rear Brake Rotors
^ Rotor Diameter 292.00 mm (11.50 inch)
^ Rotor Diameter (J55) 325.00 mm (12.79 inch)
^ Rotor Discard Thickness (JL9)* 10.5 mm (0.413 inch)
^ Rotor Discard Thickness (J55)* 27.5 mm (1.083 inch)
^ Rotor Maximum Allowable Assembled Lateral Runout (JL9) 0.06 mm (0.002 inch)
^ Rotor Maximum Allowable Assembled Lateral Runout (J55) 0.05 mm (0.002 inch)
^ Rotor Maximum Allowable Scoring (JL9, J55) 1.50 mm (0.059 inch)
^ Rotor Maximum Allowable Thickness Variation (JL9, J55) 0.025 mm (0.001 inch)
^ Rotor Minimum Allowable Thickness after Refinishing (JL9) 10.5 mm (0.413 inch)
^ Rotor Minimum Allowable Thickness after Refinishing (J55) 28.0 mm (1.102 inch)
^ Rotor Thickness (New, JL9) 12.00 mm (0.472 inch)
^ Rotor Thickness (New, J55) 29.00 mm (01.142 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 specification.