RAM 1500 Truck 4WD V8-5.9L VIN Z (2002)
Crankshaft Main Bearing: Procedures
STANDARD PROCEDURE-CRANKSHAFT MAIN BEARING FITTING
Bearing caps are not interchangeable and should be marked at removal to ensure correct assembly. Upper and lower bearing halves are NOT
interchangeable. Lower main bearing halves of No.2 and 4 are interchangeable. Upper and lower No.3 bearing halves are flanged to carry the
crankshaft thrust loads. They are NOT interchangeable with any other bearing halves in the engine (Fig. 28). Bearing shells are available in standard
and the following undersizes: Never install an undersize bearing that will reduce clearance below specifications.
Main Bearing Undersize Availability List
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0.25 mm (0.001 inch)
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0.051 mm (0.002 inch)
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0.076 mm (0.003 inch)
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0.254 mm (0.010 inch)
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0.305 mm (0.012 inch)
