GM Service Manual Online
For 1990-2009 cars only
Table 1: General Specifications
Table 2: Extension Housing Shim Calculation Table - Procedure A
Table 3: Extension Housing Shim Calculation Table - Procedure B

General Specifications

Application

Specification

Metric

English

Differential Bearing Preload

0.1-0.15 mm

0.004-0.006 in

Differential Carrier Rotating Torque

1.5 N·m

13 lb in

Drive and Drivenshafts Gears Backlash

0.2-0.3 mm

0.0078-0.0118 in

Drivenshaft Rotating Torque

1.5 N·m

13 lb in

Driveshaft Bearing Preload

0.15 mm

0.006 in

Driveshaft Rotating Torque

1.5 N·m

13 lb in

Extension Housing Gear Oil Fill Quantity

290 ml

9.80 oz

Gear Ratio Front-to-Rear

1.013:1

Idler Gear Bearing Preload

1.02-1.78 mm

0.004-0.007 in

Extension Housing Shim Calculation Table - Procedure A

Calculation

Comment

Metric

English

 

Actual Measurements

 

A

A = Nominal or "Given" Value

57 mm

2.24 in

-B

Subtract B = Pinion Thickness

 

 

+C

Add C = Pinion Installed Height

 

 

-D

Subtract D = Driveshaft Housing Calculated Value

 

 

+/-

Add or Subtract the Plus, Minus, or Zero Value Etched on the End of the Driveshaft

 

 

 

= Extension Housing Shim Thickness

 

 

Extension Housing Shim Calculation Table - Procedure B

Calculation

Comment

Metric

English

 

Actual Measurements

 

C

Pinion Installed Height

 

 

+E

Add E = Measured Value on the End of the Drivenshaft

 

 

F

C plus E equals F, the Pinion Calculated Height

 

 

 

D

Driveshaft Housing Calculated Value

 

 

-F

D minus F equals the Extension Housing Shim Thickness

 

 

 

= Extension Housing Shim Thickness