I have a Ford 600 with a Wagner loader. I heard some noise and noticed the front hydraulic pump drive shaft is misaligned where it runs through the center main axle. It is rubbing the bottom of the hole where it runs through. I am assuming there is supposed to be a bushing there but I am guessing it is gone. I can?t figure what would cause the shaft to drop. The shaft is running true and not wobbling so since it extends from the front of the crank it would seem almost like the whole engine has dropped. I don?t see anything loose so this is not making any sense to me. Does anybody have any ideas? I will try to include a picture but I am not very good at this computer stuff. Thanks in advance for any help. Joe