F 250 4WD LD Pickup V8-5.4L SOHC VIN L (1997)
Crankshaft: Description and Operation
The crankshaft is supported on the bottom of the cylinder block by five steel-backed, overplated aluminum crankshaft main bearings. It also connects
with the camshafts by two sprockets and two timing chains.
The rear crankshaft thrust washer limits crankshaft end play and absorbs thrust loads applied to the crankshaft ends.
