I been working on my z400/lt500 and well I split the cases get them machined and well the crank is no good.

Does anybody have a good crank or bottom end??
Whats wrong with the crank? Rod bearing shot?
Crank works in phx az repairs cranks
The rod is bearing is good it's the ends that fit into the case. I can drop the crank in pull it out with no effort new crank bearings.