GM Service Manual Online
For 1990-2009 cars only
Table 1: Front Differential Side Gear Shim (88)
Table 2: Front Differential Transfer Drive Gear Thrust Bearing Washer (264)
Table 3: 1-2 Reverse Internal Gear Shim (596)
Table 4: Forward/Direct Clutch Housing Thrust Bearing Race (628)

Front Differential Side Gear Shim (88)

Identification

Specifications

Metric

English

Available Shims

1.00 mm

0.039 in

1.05 mm

0.041 in

1.10 mm

0.043 in

1.15 mm

0.045 in

1.20 mm

0.047 in

1.25 mm

0.049 in

1.30 mm

0.051 in

1.35 mm

0.053 in

1.40 mm

0.055 in

1.45 mm

0.057 in

1.50 mm

0.059 in

1.55 mm

0.061 in

1.60 mm

0.0629 in

1.65 mm

0.0649 in

1.70 mm

0.0669 in

1.75 mm

0.0688 in

1.80 mm

0.070 in

1.85 mm

0.0728 in

1.90 mm

0.0748 in

Front Differential Transfer Drive Gear Thrust Bearing Washer (264)

Identification

Washer Thickness (mm)

Washer Thickness (in)

None

0.80

0.031

A

0.90

0.035

B

1.00

0.039

C

1.10

0.043

D

1.20

0.047

E

1.30

0.051

F

1.40

0.055

G

1.50

0.059

1-2 Reverse Internal Gear Shim (596)

Identification

Washer Thickness (mm)

Washer Thickness (in)

8

0.81

0.032

9

0.90

0.035

10

1.00

0.039

11

1.10

0.043

12

1.20

0.047

13

1.30

0.051

14

1.40

0.055

15

1.50

0.059

Forward/Direct Clutch Housing Thrust Bearing Race (628)

Identification

Washer Thickness (mm)

Washer Thickness (in)

None

0.81

0.032

9

0.90

0.035

10

1.00

0.039

11

1.10

0.043

12

1.20

0.047

13

1.30

0.051

14

1.40

0.055

15

1.50

0.059