CTS V6-2.8L (2006)
Brake Rotor/Disc: Specifications
Front Brake Rotor JE5
Rotor Diameter ............................................................................................................................................................................... 323.0 mm (12.71 inch)
Rotor Discard Thickness* ................................................................................................................................................................. 30.7 mm (1.209 inch)
Rotor Maximum Allowable Assembled Lateral Runout ................................................................................................................... 0.06 mm (0.002 inch)
Rotor Maximum Allowable Scoring ................................................................................................................................................. 1.50 mm (0.059 inch)
Rotor Maximum Allowable Thickness Variation ........................................................................................................................... 0.025 mm (0.001 inch)
Rotor Minimum Thickness after Refinishing .................................................................................................................................... 30.7 mm (1.209 inch)
Rotor Thickness (New) ................................................................................................................................................................... 32.20 mm (1.267 inch)
Front Brake Rotor JL9
Rotor Diameter ............................................................................................................................................................................. 303.0 mm (11.929 inch)
Rotor Discard Thickness* ................................................................................................................................................................. 30.7 mm (1.209 inch)
Rotor Maximum Allowable Assembled Lateral Runout ................................................................................................................... 0.06 mm (0.002 inch)
Rotor Maximum Allowable Scoring ................................................................................................................................................. 1.50 mm (0.059 inch)
Rotor Maximum Allowable Thickness Variation ........................................................................................................................... 0.025 mm (0.001 inch)
Rotor Minimum Thickness after Refinishing .................................................................................................................................... 30.7 mm (1.209 inch)
Rotor Thickness (New) ................................................................................................................................................................... 32.20 mm (1.267 inch)
Front Brake Rotor J56
Rotor Diameter ........................................................................................................................................................................... 355.00 mm (13.976 inch)
Rotor Discard Thickness ................................................................................................................................................................. 30.00 mm (1.181 inch)
Rotor Minimum Thickness after Refinishing .................................................................................................................................... 31.0 mm (1.220 inch)
Rotor Thickness New ...................................................................................................................................................................... 32.00 mm (1.259 inch)
Rear Brake Rotor JE5
Rotor Diameter ............................................................................................................................................................................. 320.0 mm (12.598 inch)
Rotor Discard Thickness* ................................................................................................................................................................. 24.0 mm (0.944 inch)
Rotor Maximum Allowable Assembled Lateral Runout ................................................................................................................... 0.06 mm (0.002 inch)
Rotor Maximum Allowable Scoring ................................................................................................................................................. 1.50 mm (0.059 inch)
Rotor Maximum Allowable Thickness Variation ........................................................................................................................... 0.025 mm (0.001 inch)
Rotor Minimum Thickness after Refinishing .................................................................................................................................... 24.0 mm (0.944 inch)
Rotor Thickness New ........................................................................................................................................................................ 26.0 mm (1.023 inch)
Rear Brake Rotor JL9
Rotor Diameter ............................................................................................................................................................................. 298.0 mm (11.732 inch)
Rotor Discard Thickness* ................................................................................................................................................................. 24.0 mm (0.944 inch)
Rotor Maximum Allowable Assembled Lateral Runout ................................................................................................................... 0.06 mm (0.002 inch)
Rotor Maximum Allowable Scoring ................................................................................................................................................. 1.50 mm (0.059 inch)
Rotor Maximum Allowable Thickness Variation ........................................................................................................................... 0.025 mm (0.001 inch)
Rotor Minimum Thickness after Refinishing .................................................................................................................................... 24.0 mm (0.944 inch)
Rotor Thickness New ........................................................................................................................................................................ 26.0 mm (1.023 inch)
Rear Brake Rotor J56
Rotor Diameter ........................................................................................................................................................................... 365.00 mm (14.370 inch)
Rotor Discard Thickness* ............................................................................................................................................................... 26.00 mm (1.062 inch)
Rotor Minimum Thickness after Refinishing .................................................................................................................................. 27.00 mm (1.062 inch)
Rotor Thickness New ...................................................................................................................................................................... 28.00 mm (1.102 inch)
*
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.