GM Service Manual Online
For 1990-2009 cars only

Brake Drum Dimensions

Specification

Metric

English

Discard Diameter

226.57 mm

8.920 in

Inside Diameter

225.12 mm

8.863 in

Maximum Lateral Runout

0.15 mm

0.006 in

Maximum Rebore Diameter

226.30 mm

8.909 in

Wheel Cylinder Bore Diameter

22.20 mm

0.874 in