GM Service Manual Online
For 1990-2009 cars only

Application

Specification

Metric

English

Caliper Piston Minimum Diameter

54 mm

2.12 in

Disc Type

Ventilated

Discard Thickness for 236 mm (9.29 in) Diameter Rotor

18 mm

0.709 in

Discard Thickness for 256 mm (10.08 in) Diameter Rotor

22 mm

0.866 in

Maximum Assembled Lateral Runout - Installed

0.06 mm

0.002 in

Maximum Groove Depth

0.40 mm

0.016 in

Maximum Lateral Runout - Not Installed

0.03 mm

0.001 in

Maximum Thickness Variation

0.10 mm

0.004 in

New Rotor Thickness - 236 mm (9.29 in) Diameter Rotor

20 mm

0.787 in

New Rotor Thickness - 256 mm (10.08 in) Diameter Rotor

24 mm

0.945 in

Rotor Diameter - Larger Size with SACL500 Stamping

256 mm

10.08 in

Rotor Diameter - Smaller Size with SACL485F Stamping

236 mm

9.29 in