Disc Brake Component Specifications

Application	Specification
Application	Metric	English
Front Brakes CAUTION: Two different designs of the front brake rotors and front brake pads are used on this vehicle. Do NOT interchange first design and second design parts, or a loss of braking and personal injury could occur.
Rotor Discard Thickness*
1st Design: before VIN break 59143076 (RPO JL9), or before VIN break 59148924 (RPO J65)	30.7 mm	1.21 in
2nd Design: after above VIN breaks	28.6 mm	1.13 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
1st Design: before VIN break 59143076 (RPO JL9), or before VIN break 59148924 (RPO J65)	31.08 mm	1.22 in
2nd Design: after above VIN breaks	29.0 mm	1.14 in
Rotor Thickness - New
1st Design: before VIN break 59143076 (RPO JL9), or before VIN break 59148924 (RPO J65)	32.2 mm	1.27 in
2nd Design: after above VIN breaks	30.0 mm	1.18 in
Rear Brakes
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
1st Design: before VIN break 59143076 (RPO JL9), or before VIN break 59148924 (RPO J65)	10.0 mm	0.39 in
2nd Design: after above VIN breaks	9.35 mm	0.37 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 specification.