Disc Brake Component Specifications

WARNING: This page is about a different car, the 2018 GMC Terrain and 2018 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.

Application	Specification
Application	Metric	English
Front Brakes - J17
Brake Pad Friction Material Minimum Thickness	2.0 mm	0.078 in
Rotor Diameter	321.0 mm	12.638 in
Rotor Discard Thickness*	25.0 mm	0.984 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	25.2 mm	0.992 in
Rotor Thickness New	28.0 mm	1.102 in
Front Brakes - J60
Brake Pad Friction Material Minimum Thickness	2.0 mm	0.078 in
Rotor Diameter	300.0 mm	11.810 in
Rotor Discard Thickness*	23.0 mm	0.905 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	23.2 mm	0.913 in
Rotor Thickness New	26.0 mm	1.023 in
Rear Brakes - J17, J60
Brake Pad Friction Material Minimum Thickness	2.0 mm	0.078 in
Rotor Diameter	288.0 mm	11.339 in
Rotor Discard Thickness*	10.0 mm	0.393 in
Rotor Maximum Allowable Assembled Lateral Runout	0.05 mm	0.002 in
Rotor Maximum Allowable Thickness Variation	0.025 mm	0.001 in
Rotor Maximum Allowable Scoring	1.50 mm	0.059 in
Rotor Minimum Allowable Thickness After Refinish	10.2 mm	0.402 in
Rotor Thickness New	12.0 mm	0.472 in
* All brake rotors have a minimum thickness dimension cast into them. Replace any rotor that is worn or machined below this specification.