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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1506 (REAR DRIVE AXLE)SPECIFICATIONSSPACER AND SHIM SPECIFICATIONS

2004 Oldsmobile Bravada AWD

Spacer and Shim Specifications

2004 Oldsmobile Bravada AWDSECTION Spacer and Shim Specifications

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

Pinion Shim Calculation Table with an A1 Value Greater Than 103.00 mm (4.055 in) All Axle Ratios

Calculations	Example Measurements		Actual Measurements
-	Metric	English	Metric	English
B Nominal Value	5.00 mm	0.197 in	5.00 mm	0.197 in
B1 Measured Value	3.44 mm	0.135 in	-	-
B2 (B Nominal Value Minus B1 = B2)	1.56 mm	0.061 in	-	-
-
A1 Value (Taken from Ring Gear)	103.03 mm	4.056 in	-	-
A Nominal Value	103.00 mm	4.055 in	103.00 mm	4.055 in
B3 (A1 Value Minus A Nominal = B3)	0.03 mm	0.0012 in	-	-
-
B2	1.56 mm	0.061 in	-	-
B3	0.03 mm	0.0012 in	-	-
Pinion Shim Size (B2 Plus B3 = Pinion Shim)	1.59 mm	0.0622 in	-	-

Pinion Shim Calculation Table with an A1 Value Less Than 103.00 mm (4.055 in) All Axle Ratios

Calculations	Example Measurements		Actual Measurements
-	Metric	English	Metric	English
B Nominal Value	5.00 mm	0.197 in	5.00 mm	0.197 in
B1 Measured Value	3.44 mm	0.135 in	-	-
B2 (B Nominal Value Minus B1 = B2)	1.56 mm	0.061 in	-	-
-
A1 Value (Taken from Ring Gear)	102.97 mm	4.054 in	-	-
A Nominal Value	103.00 mm	4.055 in	103.00 mm	4.055 in
B3 (A1 Value Minus A Nominal = B3)	-0.03 mm	-0.0011 in	-	-
-
B2	1.56 mm	0.061 in	-	-
B3	-0.03 mm	-0.0011 in	-	-
Pinion Shim Size (B2 Plus B3 = Pinion Shim)	1.53 mm	0.0599 in	-	-

Differential Case Left Side Shim Calculation Table with an A2 Value Greater Than 65.5 mm (2.58 in) 3.15/3.42 Ratio Axles

Calculations	Example Measurements		Actual Measurements
-	Metric	English	Metric	English
C Nominal Value	5.00 mm	0.197 in	5.00 mm	0.197 in
C1 Measured Value	1.19 mm	0.047 in	-	-
C2 (C Nominal Value Minus C1 = C2)	3.81 mm	0.15 in	-	-
-
A2 Value (Taken from Ring Gear)	65.53 mm	2.579 in	-	-
D Nominal Value	65.50 mm	2.58 in	65.50 mm	2.58 in
C3 (A2 Value Minus D Nominal = C3)	0.03 mm	0.0012 in	-	-
-
C2	3.81 mm	0.15 in	-	-
C3	0.03 mm	0.0012 in	-	-
Left Side Case Shim (C2 Plus C3 = Left Side Shim)	3.84 mm	0.1512 in	-	-

Differential Case Left Side Shim Calculation Table with an A2 Value Less Than 65.5 mm (2.58 in) 3.15/3.42 Ratio Axles

Calculations	Example Measurements		Actual Measurements
-	Metric	English	Metric	English
C Nominal Value	5.00 mm	0.197 in	5.00 mm	0.197 in
C1 Measured Value	1.19 mm	0.047 in	-	-
C2 (C Nominal Value Minus C1 = C2)	3.81 mm	0.15 in	-	-
-
A2 Value (Taken from Ring Gear)	65.47 mm	2.577 in	-	-
D Nominal Value	65.50 mm	2.58 in	65.50 mm	2.58 in
C3 (A2 Value Minus D Nominal = C3)	-0.03 mm	-0.0012 in	-	-
-
C2	3.81 mm	0.15 in	-	-
C3	-0.03 mm	-0.0012 in	-	-
Left Side Case Shim (C2 Plus C3 = Left Side Shim)	3.78 mm	0.1498 in	-	-

Differential Case Left Side Shim Calculation Table with an A2 Value Greater Than 74.50 mm (2.933 in) 2.73 Ratio Axles

Calculations	Example Measurements		Actual Measurements
-	Metric	English	Metric	English
C Nominal Value	5.00 mm	0.197 in	5.00 mm	0.197 in
C1 Measured Value	1.19 mm	0.047 in	-	-
C2 (C Nominal Value Minus C1 = C2)	3.81 mm	0.15 in	-	-
-
A2 Value (Taken from Ring Gear)	74.53 mm	2.934 in	-	-
D Nominal Value	74.50 mm	2.933 in	74.50 mm	2.933 in
C3 (A2 Value Minus D Nominal = C3)	0.03 mm	0.0012 in	-	-
-
C2	3.81 mm	0.15 in	-	-
C3	0.03 mm	0.0012 in	-	-
Left Side Case Shim (C2 Plus C3 = Left Side Shim)	3.84 mm	0.1512 in	-	-

Differential Case Left Side Shim Calculation Table with an A2 Value Less Than 74.50 mm (2.933 in) 2.73 Ratio Axles

Calculations	Example Measurements		Actual Measurements
-	Metric	English	Metric	English
C Nominal Value	5.00 mm	0.197 in	5.00 mm	0.197 in
C1 Measured Value	1.19 mm	0.047 in	-	-
C2 (C Nominal Value Minus C1 = C2)	3.81 mm	0.15 in	-	-
-
A2 Value (Taken from Ring Gear)	74.47 mm	2.932 in	-	-
D Nominal Value	74.50 mm	2.933 in	74.50 mm	2.933 in
C3 (A2 Value Minus D Nominal = C3)	-0.03 mm	-0.0012 in	-	-
-
C2	3.81 mm	0.15 in	-	-
C3	-0.03 mm	-0.0012 in	-	-
Left Side Case Shim (C2 Plus C3 = Left Side Shim)	3.78 mm	0.1498 in	-	-

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.