GM Service Manual Online
For 1990-2009 cars only

Application

Specification

Metric

English

Drum Inner Diameter (Maximum)

201 mm

7.913 in

Drum Out-of-Round (Maximum)

0.01 mm

0.0004 in

Drum Roundness (Maximum)

0.04 mm

0.0016 in

Drum Runout (Maximum)

0.04 mm

0.0016 in

Drum Taper (Maximum)

0.1 mm

0.004 in

Lining Material Thickness (Minimum)

1 mm

0.039 in

Shoe and Lining Thickness (Minimum)

3 mm

0.12 in

Shoe to Parking Brake Lever Clearance

0.35 mm

0.0138 in