Had to have my shift shaft replaced. Took the engine out and took it to the dealer. they replaced the shaft and I put the engine back in. also added a set of vance and hines pipes. But once I got it running it has a vibration problem. Broke license plates and a gas tank mount. I thought at first that maybe it was the pipes but I don't think so. The dealership doesn't seem to have an idea. At about 2000 rpm it looks like the mirrors are about to come off. rpm increase it smooths out but will make my right foot go numb after a while. right side seems worse. motor mounts look ok and don't see anything touching that shouldn't be. I'm lost. any ideas out there.