WOW I am surprized that James did not jump on that one and take jabs at you Harold. So I guess I will. It sounds as if your shaft is a little bit short on length Sir.
Not that there is anything wrong with that.....
Sorry could not resist.
If nothing else you can take some measurments and special order shafts from RCalloys. Have you tried using the fuel tubing trick to fill in a little on both ends, which should keep the shaft centered??