Front Brake Rotors

• Rotor Discard Thickness * (J65, JL9)

30.7 mm

1.21 in

• Rotor Discard Thickness *(Z7U)

29.0 mm

1.14 in

• Rotor Maximum Allowable Lateral Runout (J65, JL9)

0.060 mm

0.002 in

• Rotor Maximum Allowable Lateral Runout(Z7U)

0.030 mm

0.0012 in

• Rotor Maximum Scoring

1.50 mm

0.059 in

Rotor Maximum Allowable Thickness Variation

• J65, JL9

0.025 mm

0.001 in

• Z7U

0.006 mm

0.00024 in

Rotor Minimum Allowable Thickness After Refinishing

• J65, JL9

31.0 mm

1.22 in

• Z7U

30.0 mm

1.18 in

Rotor Thickness-NEW

• J65, JL9

32.2 mm

1.27 in

• Z7U

32.0 mm

1.26 in

Rear Brake Rotors

• Rotor Discard Thickness * (J65, JL9)

12.5 mm

0.49 in

• Rotor Discard Thickness *(Z7U)

23.0 mm

0.91 in

Rotor Maximum Allowable Lateral Runout

• J65, JL9

0.05 mm

0.002 in

• Z7U

0.0305 mm

0.0012 in

• Rotor Maximum Allowable Scoring

1.50 mm

0.059 in

Rotor Maximum Allowable Thickness Variation

• J65, JL9

0.02 mm

0.001 in

• Z7U

0.006 mm

0.00024 in

Rotor Minimum Thickness After Refinishing

• J65, JL9

12.9 mm

0.51 in

• Z7U

24.0 mm

0.945 in

Rotor Thickness-NEW

• J65, JL9

14.00 mm

0.55 in

• Z7U

26.00 mm

1.024 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.