Disc Brake Component Specifications

WARNING: This page is about a different car, the 2002 GMC Sierra and 2002 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

DISC BRAKE COMPONENT SPECIFICATIONS

Application	Specification
Application	Metric	English
Front Brakes JC5/JH5 All
Rotor Discard Thickness *	27.2 mm	1.071 inches
Rotor Minimum Allowable Thickness After Refinish	28.0 mm	1.102 in
Rotor Thickness -- new	29.0 mm	1.142 in
Rotor Maximum Allowable Lateral Runout	0.13 mm	0.005 in
Rotor Maximum Allowable Scoring	1.50 mm	0.059 in
Rotor Maximum Allowable Thickness Variation	0.025 mm	0.001 in
Front Brakes JH6
Rotor Discard Thickness *	36.50 mm	1.437 in
Rotor Minimum Allowable Thickness After Refinish	37.0 mm	1.457 in
Rotor Thickness -- new	38.0 mm	1.496 in
Rotor Maximum Allowable Lateral Runout	0.13 mm	0.005 in
Rotor Maximum Allowable Scoring	1.50 mm	0.059 in
Rotor Maximum Allowable Thickness Variation	0.025 mm	0.001 in
Front Brakes JH7
Rotor Discard Thickness *	36.50 mm	1.437 in
Rotor Minimum Allowable Thickness After Refinish	37.0 mm	1.457 in
Rotor Thickness -- new	38.0 mm	1.496 in
Rotor Maximum Allowable Lateral Runout	0.13 mm	0.005 in
Rotor Maximum Allowable Scoring	1.50 mm	0.059 in
Rotor Maximum Allowable Thickness Variation	0.025 mm	0.001 in
Rear Brakes JC5/JH5 Pickup Only
Rotor Discard Thickness *	18.50 mm	0.728 in
Rotor Minimum Allowable Thickness After Refinish	19.0 mm	0.748 in
Rotor Thickness -- new	20.0 mm	0.787 in
Rotor Maximum Allowable Lateral Runout	0.13 mm	0.005 in
Rotor Maximum Allowable Scoring	1.50 mm	0.059 in
Rotor Maximum Allowable Thickness Variation	0.025 mm	0.001 in
Rear Brakes JH6
Rotor Discard Thickness *	27.50 mm	1.083 in
Rotor Minimum Allowable Thickness After Refinish	28.0 mm	1.102 in
Rotor Thickness -- new	29.0 mm	1.142 in
Rotor Maximum Allowable Lateral Runout	0.13 mm	0.005 in
Rotor Maximum Allowable Scoring	1.50 mm	0.059 in
Rotor Maximum Allowable Thickness Variation	0.025 mm	0.001 in
Rear Brakes JH7
Rotor Discard Thickness *	28.5 mm	1.122 in
Rotor Minimum Allowable Thickness After Refinish	29.0 mm	1.142 in
Rotor Thickness -- new	30.0 mm	1.181 in
Rotor Maximum Allowable Lateral Runout	0.13 mm	0.005 in
Rotor Maximum Allowable Scoring	1.50 mm	0.059 in
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 specifications.