360 Balance Question

Well, as I said, I had a mad vibration, felt it in the steering, and it seemed like the sound couldn't ever be tracced to any one area. Lifted car on hoist, turned wheels watched driveshaft, It WAS the driveshaft. As soon as I replaced it with a new one I had made, vibration VANISHED. They are 30 plus years old uni-body cars and they flex, especially in the mid forward area which can transmit to the steering wheel. What I am suggesting him to check is free to be inspected with a jack and a few jackstands. :thumbrig: