GM Service Manual Online
For 1990-2009 cars only

Mark

Thickness (mm)

Thickness (in)

A

2.07-2.12

0.0815-0.0835

B

2.12-2.17

0.0835-0.0854

C

2.17-2.22

0.0854-0.0874

D

2.22-2.27

0.0874-0.0894

E

2.27-2.32

0.0894-0.0913

F

2.32-2.37

0.0913-0.0933