the drive shaft came out of the donor truck and all we had to do is put a 350 yoke on it. i dont know if it vibrated before i removed the old drive train or not. it jacked the front up and rotated the wheels and they look like they turn true.i jacked the rear up on put on jack stands, ran the motor and tranny in 1st and it vibrated when it got up to 3000 rpm. the wheels looked like it rotated trul.i looked at the drive shaft turning and it looked truei forgot to mentioin that it vibrated when coasting down a hill at what i think is 40 mph or so.
