Brake Rotor/Disc

2007 Chevrolet Express 2500 V8-6.0LSECTION Brake Rotor/Disc
Front Brake JH5
Rotor Discard Thickness * 27.50 mm (1.083 in)
Rotor Minimum Allowable Thickness After Refinish 28.0 mm (1.102 in)
Rotor Thickness New 29.0 mm (1.142 in)
Rotor Maximum Allowable Lateral Runout 0.13 mm (0.005 in)
Rotor Maximum Allowable Scoring 1.50 mm (0.059 in)
Rotor Maximum Allowable Thickness Variation 0.025 mm (0.001 in)
Front Brake JH6
Rotor Discard Thickness * 36.50 mm (1.437 in)
Rotor Minimum Allowable Thickness After Refinish 37.0 mm (1.457 in)
Rotor Thickness New 38.0 mm (1.496 in)
Rotor Maximum Allowable Lateral Runout 0.13 mm (0.005 in)
Rotor Maximum Allowable Scoring 1.50 mm (0.059 in)
Rotor Maximum Allowable Thickness Variation 0.025 mm (0.001 in)
Front Brake JH7
Rotor Discard Thickness * 36.50 mm (1.437 in)
Rotor Minimum Allowable Thickness After Refinish 37.0 mm (1.457 in)
Rotor Thickness New 38.0 mm (1.496 in)
Rotor Maximum Allowable Lateral Runout 0.13 mm (0.005 in)
Rotor Maximum Allowable Scoring 1.50 mm (0.059 in)
Rotor Maximum Allowable Thickness Variation 0.025 mm (0.001 in)
Rear Brake JH5
Rotor Discard Thickness * 28.50 mm (1.122 in)
Rotor Minimum Allowable Thickness After Refinish 29.0 mm (1.142 in)
Rotor Thickness New 30.0 mm (1.181 in)
Rotor Maximum Allowable Lateral Runout 0.13 mm (0.005 in)
Rotor Maximum Allowable Scoring 1.50 mm (0.059 in)
Rotor Maximum Allowable Thickness Variation 0.025 mm (0.001 in)
Rear Brake JH6
Rotor Discard Thickness * 27.50 mm (1.083 in)
Rotor Minimum Allowable Thickness After Refinish 28.0 mm (1.102 in)
Rotor Thickness New 29.0 mm (1.142 in)
Rotor Maximum Allowable Lateral Runout 0.13 mm (0.005 in)
Rotor Maximum Allowable Scoring 1.50 mm (0.059 in)
Rotor Maximum Allowable Thickness Variation 0.025 mm (0.001 in)
Rear Brake JH7
Rotor Discard Thickness * 28.5 mm (1.122 in)
Rotor Minimum Allowable Thickness After Refinish 29.0 mm (1.142 in)
Rotor Thickness New 30.0 mm (1.181 in)
Rotor Maximum Allowable Lateral Runout 0.13 mm (0.005 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.

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.