Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2281 (REAR DRIVE AXLE)SPECIFICATIONSSPACER AND SHIM SPECIFICATIONS
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6
Spacer and Shim Specifications
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Spacer and Shim Specifications
WARNING: This page is about a different car, the 2010 Cadillac STS. 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 111.00 mm (4.37 in)
| 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 | 3.31 mm | 0.130 in | - | - |
| B2 (B Nominal Value Minus B1 = B2) | 1.69 mm | 0.067 in | - | - |
| A1 Value (Taken from Ring Gear) | 111.03 mm | 4.371 in | - | - |
| A Nominal Value | 111.00 mm | 4.37 in | 111.00 mm | 4.37 in |
| B3 (A1 Value Minus A Nominal = B3) | 0.03 mm | 0.0012 in | - | - |
| B2 | 1.69 mm | 0.0665 in | - | - |
| B3 | 0.03 mm | 0.0012 in | - | - |
| Pinion Shim Size (B2 Plus B3 = Pinion Shim) | 1.72 mm | 0.0677 in | - | - |
Pinion Shim Calculation Table with an A1 Value Less Than 111.00 mm (4.37 in)
| 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 | 3.31 mm | 0.130 in | - | - |
| B2 (B Nominal Value Minus B1 = B2) | 1.69 mm | 0.067 in | - | - |
| A1 Value (Taken from Ring Gear) | 110.97 mm | 4.369 in | - | - |
| A Nominal Value | 111.00 mm | 4.37 in | 111.00 mm | 4.37 in |
| B3 (A1 Value Minus A Nominal = B3) | -0.03 mm | -0.0011 in | - |
- |
| B2 | 1.69 mm | 0.067 in | - | - |
| B3 | -0.03 mm | -0.0011 in | - | - |
| Pinion Shim Size (B2 Plus B3 = Pinion Shim) | 1.66 mm | 0.0654 in | - | - |
Differential Case Left Side Shim Calculation Table with an A2 Value Greater Than 63.5 mm (2.5 in)
| 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 | 3.10 mm | 0.122 in | - | - |
| C2 (C Nominal Value Minus C1 = C2) | 1.90 mm | 0.075 in | - | - |
| A2 Value (Taken from Ring Gear) | 63.53 mm | 2.501 in | - | - |
| D Nominal Value | 63.50 mm | 2.5 in | 63.5 mm | 2.5 in |
| C3 (A2 Value Minus D Nominal = C3) | 0.03 mm | 0.0012 in | - | - |
| C2 | 1.90 mm | 0.0748 in | - | - |
| C3 | 0.03 mm | 0.0012 in | - | - |
| Left Side Case Shim (C2 Plus C3 = Left Side Shim) | 1.93 mm | 0.0736 in | - | - |
Differential Case Left Side Shim Calculation Table with an A2 Value Less Than 63.5 mm (2.5 in)
| 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 | 3.10 mm | 0.122 in | - | - |
| C2 (C Nominal Value Minus C1 = C2) | 1.90 mm | 0.75 in | - | - |
| A2 Value (Taken from Ring Gear) | 63.47 mm | 2.499 in | - | - |
| D Nominal Value | 63.5 mm | 2.5 in | 63.5 mm | 2.50 in |
| C3 (A2 Value Minus D Nominal = C3) | -0.03 mm | -0.0012 in | - | - |
| C2 | 1.90 mm | 0.0748 in | - | - |
| C3 | -0.03 mm | -.0012 in | - | - |
| Left Side Case Shim (C2 Plus C3 = Left Side Shim) | 1.87 mm | 0.0736 in | - | - |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.