For most engines there is no need to change the crankshaft to use an engine for an automatic or a manual transmission. For an automatic, connect a flex-plate to the crankshaft. For a manual transmission connect a flywheel.
Are we talking about excessive crankshaft endplay or a damaged flywheel? If its crankshaft endplay, replace the thrust bearings (and torque converter if automatic transmission). If it's the flywheel, replace the flywheel.
The flywheel is bolted to the crankshaft.
In most cases the flywheel is bolted straight on to the end of the crankshaft.
Flywheel
Bolts
flywheel
Its between the crankshaft & the clutch.
Its between the crankshaft & the clutch.
Crankshaft directly connects to the flywheel.
It fits into the end of the crankshaft.
Next to the flywheel
no