Spacer and Shim Specifications. Chevrolet Corvette 2001

GM Service Manual Online

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2001 🢒 Corvette 🢒 Driveline/Axle 🢒 Rear Drive Axle 🢒 Spacer and Shim Specifications

Table 1:	Pinion Shim Calculation Table with an A1 Value Greater Than 103.00 mm (4.055 in) All Axle Ratios
Table 2:	Pinion Shim Calculation Table with an A1 Value Less Than 103.00 mm (4.055 in) All Axle Ratios
Table 3:	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
Table 4:	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
Table 5:	Differential Case Left Side Shim Calculation Table with an A2 Value Greater Than 74.50 mm (2.933 in) 2.73 Ratio Axles
Table 6:	Differential Case Left Side Shim Calculation Table with an A2 Value Less Than 74.50 mm (2.933 in) 2.73 Ratio Axles

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