E 150 1/2 Ton Van V6-4.2L VIN 2 (1997)
4. Install the crankshaft sprocket, camshaft sprocket and timing chain as an assembly.
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Timing marks on the gears and keyways on the shafts must align.
5. Install the synchronizer drive gear.
6. Install the front cover. See: Timing Cover/Service and Repair