Driveline vibration!!! I need help!
Quote: "The faster you drive the longer
distance between end of tailshaft & rear end will be."
Im sorry, I just look at the diagram, I was wrong on this one. The correct is: "the faster you drive the shorter
distance between end of tailshaft & rear end "
So your driveshaft either out of balance or too long. If its too long, when driving over 55MPH the driveshaft push the outputshaft forward, this caused vibration.
