JB6

• Rotor Discard Thickness *

30.86 mm

1.215 in

• Rotor Minimum Allowable Thickness After Refinish

31.25 mm

1.23 in

• Rotor Thickness (new)

31.75 mm

1.25 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

JD7 (Gas)

• Rotor Discard Thickness *

30.86 mm

1.215 in

• Rotor Minimum Allowable Thickness After Refinish

31.25 mm

1.23 in

• Rotor Thickness (new)

32.0 mm

1.26 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

JD7 (Diesel)

• Rotor Discard Thickness *

37.21 mm

1.465 in

• Rotor Minimum Allowable Thickness After Refinish

37.59 mm

1.48 in

• Rotor Thickness (new)

38.10 mm

1.50 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

JB8 With Single Rear Wheels

• Rotor Discard Thickness *

31.85 mm

1.25 in

• Rotor Minimum Allowable Thickness After Refinish

32.15 mm

1.27 in

• Rotor Thickness (new)

32.7 mm

1.29 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

JB8 With Dual Rear Wheels

• Rotor Discard Thickness *

37.21 mm

1.465 in

• Rotor Minimum Allowable Thickness After Refinish

37.59 mm

1.48 in

• Rotor Thickness (new)

38.10 mm

1.50 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.