Yes, it was shifting fine before I rebuilt it. A detent ball out of place is a possibility. The only other thing I can think of is the synchronizer isn't seated properly. I have a service manual that I refer to on a regular basis. This is the first transmission I've rebuilt. I'm using the Novac rebuild kit which has better instructions than the service manual. Everything was sliding and rotating in the case before I put the top on so I'm pretty sure the problem is in the shift tower but anything is possible. Thanks for the help guys.