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.
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HOMESERVICE MANUALSCHEVROLET2007EXPRESS 2500 V8-6.0LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYCRANKSHAFT, ENGINE
2007 Chevrolet Express 2500 V8-6.0L
Crankshaft, Engine
2007 Chevrolet Express 2500 V8-6.0LSECTION Crankshaft, Engine
Cylinder Bore Diameter 101.618-101.636 mm (4.0007-4.0017 in)
Crankshaft
Crankshaft End Play 0.04-0.2 mm (0.0015-0.0078 in)
Crankshaft Main Journal Diameter
Production 64.992-65.008 mm (2.558-2.559 in)
Service 64.992 mm (2.558 in)
Crankshaft Main Journal Out-of-Round
Production 0.003 mm (0.000118 in)
Service 0.008 mm (0.0003 in)
Crankshaft Main Journal Taper
Production 0.01 mm (0.0004 in)
Service 0.02 mm (0.00078 in)
Crankshaft Rear Flange Runout 0.05 mm (0.002 in)
Crankshaft Reluctor Ring Runout - Measured 1.0 mm (0.04 in) Below Tooth Diameter 0.7 mm (0.028 in)
Crankshaft Thrust Surface
Production 26.14-26.22 mm (1.029-1.0315 in)
Service 26.22 mm (1.0315 in)
Crankshaft Thrust Surface Runout 0.025 mm (0.001 in)
Crankshaft
Crankshaft End Play 0.04-0.2 mm (0.0015-0.0078 in)
Crankshaft Main Journal Diameter
Production 64.992-65.008 mm (2.558-2.559 in)
Service 64.992 mm (2.558 in)
Crankshaft Main Journal Out-of-Round
Production 0.003 mm (0.000118 in)
Service 0.008 mm (0.0003 in)
Crankshaft Main Journal Taper
Production 0.01 mm (0.0004 in)
Service 0.02 mm (0.00078 in)
Crankshaft Rear Flange Runout 0.05 mm (0.002 in)
Crankshaft Reluctor Ring Runout - Measured 1.0 mm (0.04 in) Below Tooth Diameter 0.7 mm (0.028 in)
Crankshaft Thrust Surface
Production 26.14-26.22 mm (1.029-1.0315 in)
Service 26.22 mm (1.0315 in)
Crankshaft Thrust Surface Runout 0.025 mm (0.001 in)
RENDER: 1.0x
NO RELATED
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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.