[Jason7121]

Thanks for the input everyone. I took my drive shaft to a driveline specialist yesterday. Just by looking at where tailshaft seal rides on yoke he thought my driveshaft was too short. I came home and measured and sure eonugh it's an inch short. Yoke was only in trans maybe an inch with suspension loaded. I'm having a new driveline made with 3" tubing instead of 3.5". They said larger tube diameter with steel driveline could induce more vibration also. I'm going to try this as I have already tryed moving rear end with shims.