Disc Brake Component Specifications

WARNING: This page is about a different car, the 2015 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.

Application	Specification
Application	Metric	English
Front Brakes
Brake Rotor Diameter	321.0 mm	12.63 in
Brake Rotor Discard Thickness*	27.0 mm	1.07 in
Brake Rotor Maximum Allowable Assembled Lateral Runout	0.05 mm	0.002 in
Brake Rotor Maximum Allowable Scoring	1.50 mm	0.059 in
Brake Rotor Maximum Allowable Thickness Variation	0.006 mm	0.00024 in
Brake Rotor Thickness New	30.0 mm	1.18 in
Rear Brakes
Brake Rotor Diameter	315.0 mm	12.40 in
Brake Rotor Discard Thickness*	21.5 mm	0.846 in
Brake Rotor Maximum Allowable Assembled Lateral Runout	0.05 mm	0.002 in
Brake Rotor Maximum Allowable Scoring	1.50 mm	0.059 in
Brake Rotor Maximum Allowable Thickness Variation	0.006 mm	0.00024 in
Brake Rotor Thickness- New	23.0 mm	0.905 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 discard thickness specification.