Engine Component Description: Crankshaft

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The crankshaft is cast nodular iron. The crankshaft is supported by five crankshaft bearings. The bearings are retained by crankshaft bearing caps which are machined with the engine block for proper alignment and clearance. The crankshaft journals are undercut and rolled. The center main journal is the thrust journal. A crankshaft position reluctor ring is press fit mounted at the rear of the crankshaft.

The reluctor ring is not serviceable separately. All crankshafts will have a short rear flange (at the crankshaft rear oil seal area). The 4.8 L manual transmission and all 6.0 L applications require a spacer between the rear of the crankshaft and the flywheel for proper flywheel positioning. Longer bolts are required in applications using the spacer.