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 MAIN BEARING
2007 Chevrolet Express 2500 V8-6.0L
Crankshaft Main Bearing
2007 Chevrolet Express 2500 V8-6.0LSECTION Crankshaft Main Bearing
Crankshaft Main Bearing Bore Diameter 69.871-69.889 mm (2.75-2.751 in)
Crankshaft Main Bearing Bore Out-of-Round 0.006 mm (0.0002 in)
Crankshaft Main Bearing Clearance
Production 0.02-0.052 mm (0.0008-0.0021 in)
Service 0.02-0.065 mm (0.0008-0.0025 in)
Crankshaft Bearing Cap M8 Bolts 25 N.m (18 lb ft)
Crankshaft Bearing Cap M10 Bolts
First Pass in Sequence 20 N.m (15 lb ft)
Final Pass in Sequence 80 degrees
Crankshaft Bearing Cap M10 Studs
First Pass in Sequence 20 N.m (15 lb ft)
Final Pass in Sequence 51 degrees
Crankshaft Main Bearing Bore Out-of-Round 0.006 mm (0.0002 in)
Crankshaft Main Bearing Clearance
Production 0.02-0.052 mm (0.0008-0.0021 in)
Service 0.02-0.065 mm (0.0008-0.0025 in)
Crankshaft Bearing Cap M8 Bolts 25 N.m (18 lb ft)
Crankshaft Bearing Cap M10 Bolts
First Pass in Sequence 20 N.m (15 lb ft)
Final Pass in Sequence 80 degrees
Crankshaft Bearing Cap M10 Studs
First Pass in Sequence 20 N.m (15 lb ft)
Final Pass in Sequence 51 degrees
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.