Brake Rotor/Disc

FRONT BRAKE ROTOR/DISC

Front Brakes (RPO code JM4 - Power, Front Disc, Rear Drum, Cast Iron, Antilock, Front and Rear Wheel)

MINIMUM & DISCARD THICKNESS
Brake Rotor Discard Thickness* 22.8 mm (0.898 in)
Brake Rotor Minimum Allowable Thickness After Refinish 23.0 mm (0.906 in)

THICKNESS VARIATION/RUNOUT
Brake Rotor Maximum Allowable Assembled Lateral Runout 0.06 mm (0.002 in)
Brake Rotor Maximum Allowable Thickness Variation 0.025 mm (0.001 in)

Front Brakes (RPO code JL9 - Power, Front and Rear Disc, Antilock, Front and Rear Wheel)

MINIMUM & DISCARD THICKNESS
Brake Rotor Discard Thickness* 22.8 mm (0.898 in)
Brake Rotor Minimum Allowable Thickness After Refinish 23.0 mm (0.906 in)

THICKNESS VARIATION/RUNOUT
Brake Rotor Maximum Allowable Assembled Lateral Runout 0.06 mm (0.002 in)
Brake Rotor Maximum Allowable Thickness Variation 0.025 mm (0.001 in)

REAR BRAKE ROTOR/DISC

Rear Brakes (RPO code JL9 - Power, Front and Rear Disc, Antilock, Front and Rear Wheel)

MINIMUM & DISCARD THICKNESS
Brake Rotor Discard Thickness* 11.8 mm (0.465 in)
Brake Rotor Minimum Allowable Thickness After Refinish 12.0 mm (0.472 in)

THICKNESS VARIATION/RUNOUT
Brake Rotor Maximum Allowable Assembled Lateral Runout 0.06 mm (0.002 in)
Brake 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 specification.