Envoy 2WD L6-4.2L (2008)
Brake Rotor/Disc: Specifications
Front Brakes
Rotor Minimum Thickness * ................................................................................................................................................................ 27.5 mm (1.08 in)
Rotor Thickness - New ......................................................................................................................................................................... 29.0 mm (1.14 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)
Rear Brakes
Rotor Minimum Thickness * ............................................................................................................................................................ 18.50 mm (0.728 in)
Rotor Thickness - New ....................................................................................................................................................................... 20.0 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 minimum thickness dimension cast into them. Replace any rotor that is worn or machined below this specification.