More possibilities

Crankshaft pilot hole not quite deep enough.
Bell housing not concentric to crank.
Wrong flywheel bolts
Washers on flywheel bolts
Excessively cut flywheel
Disc in backwards
Broken/stretched/loose pressure plate finger pivot bolt.

Last edited by GomangoCuda; 10/30/22 05:32 PM.
In theory, there is no difference between theory and practice. In practice, there is.