Did you make sure your compensator nut was tight, they can work loose, other than that i would be inclined to check out the clutch basket as well as the transmission shaft. Also the infernal from hell top motor mount. Vibrations have a way of traveling that can make ya crazy. Is this a B motor, I think so, it has a balancer that might need attention also. By: Mark_Goff on: 6-6-2007