Disc Brake Component Specifications. GMC Truck Jimmy

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2004 🢒 Jimmy - 2WD 🢒 Brakes 🢒 Disc Brakes 🢒 Disc Brake Component Specifications

Application	Specification
Application	Metric	English
JM3 (Front)
Rotor Discard Thickness *	24.51 mm	0.965 in
Rotor Minimum Allowable Thickness After Refinish	24.89 mm	0.980 in
Rotor Thickness (new)	26.2 mm	1.03 in
Rotor Maximum Allowable Lateral Runout	0.051 mm	0.002 in
Rotor Maximum Allowable Scoring	1.5 mm	0.059 in
Rotor Maximum Allowable Thickness Variation	0.025 mm	0.001 in
JC1 (Front)
Rotor Discard Thickness *	27.5 mm	1.08 in
Rotor Minimum Allowable Thickness After Refinish	28 mm	1.10 in
Rotor Thickness (new)	29 mm	1.14 in
Rotor Maximum Allowable Lateral Runout	0.051 mm	0.002 in
Rotor Maximum Allowable Scoring	1.5 mm	0.059 in
Rotor Maximum Allowable Thickness Variation	0.025 mm	0.001 in
JC1 (Rear)
Rotor Discard Thickness *	18.50 mm	0.728 in
Rotor Minimum Allowable Thickness After Refinish	19.00 mm	0.748 in
Rotor Thickness (new)	20 mm	0.787 in
Rotor Maximum Allowable Lateral Runout	0.051 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
* 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.