GM Service Manual Online
For 1990-2009 cars only

Mark

Thickness (mm)

Thickness (in)

A

2.65-2.70

0.1043-0.1062

B

2.70-2.75

0.1062-0.1083

C

2.75-2.80

0.1083-0.1102

D

2.80-2.85

0.1102-0.1122

E

2.85-2.90

0.1122-0.1142

F

2.90-2.95

0.1142-0.1161