I have a 1985 Suzuki 250 motor and want to do a trans delete and replace with 3/4" shaft. Tim Taft is making the drive and driven pulleys for me but I'm not sure on wear or how to find bearings for the 3/4" Jack shaft in the case. One bearing measures 55.96mm(56mm?) O.D. and the other is 39.99mm(40mm?) O.D. . Any help would be appreciated.