GM Service Manual Online
For 1990-2009 cars only

Mark

Thickness (mm)

Thickness (in)

A

1.80-1.85

0.0709-0.0728

B

1.85-1.90

0.0728-0.0748

C

1.90-1.95

0.0748-0.0768

D

1.95-2.00

0.0768-0.0787

E

2.00-2.05

0.0787-0.0807

F

2.05-2.10

0.0807-0.0827

G

2.10-2.15

0.0827-0.0846