Disc Brake Component Specifications

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

Application	Specification
Application	Metric	English
Front Brakes
Caliper Bore Diameter	64 mm	2.520 in
Rotor Diameter (All Wheel Drive)	300 mm	11.811 in
Rotor Diameter (Front Wheel Drive)	275 mm	10.945 in
Rotor Discard Thickness*	27.0 mm	1.063 in
Rotor Maximum Allowable Assembled Lateral Runout	0.06 mm	0.002 in
Rotor Maximum Allowable Scoring	1.50 mm	0.059 in
Rotor Maximum Allowable Thickness Variation	0.025 mm	0.001 in
Rotor Minimum Allowable Thickness After Refinish	28.4 mm	1.118 in
Rotor Minimum Wear Stock	1.0 mm	0.039 in
Rotor Thickness (new)	30.0 mm	1.181 in
Rear Brakes
Caliper Bore Diameter	38.1 mm	1.500 in
Rotor Diameter	291.0 mm	11.457 in
Rotor Discard Thickness*	9.0 mm	0.35 in
Rotor Maximum Allowable Assembled Lateral Runout	0.06 mm	0.002 in
Rotor Maximum Allowable Scoring	1.50 mm	0.059 in
Rotor Maximum Allowable Thickness Variation	0.025 mm	0.001 in
Rotor Minimum Allowable Thickness After Refinish	10.6 mm	0.42 in
Rotor Minimum Wear Stock	1.6 mm	0.06 in
Rotor Thickness (new)	11.0 mm	0.43 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.