Disc Brake Component Specifications

WARNING: This page is about a different car, the 2004 GMC Safari and 2004 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.

Application	Specification
Application	Metric	English
Front Brakes
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 Assembled 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
Rotor Discard Thickness	18.5 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 Assembled 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.