I have a 95 5.0 Mustang, I recently got a new Vibration up in the front. I went ahead and jacked it up to see if I could see anything. I felt around and everything looks good. I didn't hit anything it just developed. But don't get me wrong I am not nice to this Car at all. I also just put a H-Pipe on it last week and its been moving around a little under the car so I went ahead and put it up on the side after looking at the front end. After getting the H-Pipe where I wanted it I moved the wheel to make sure my Flow masters where not touching the Drive Shaft. I heard a click. I ended up pulling the diff cover and found a few chewed teeth. Car still runs and drives ok and I know I should be easy on it. I guess my real question is do you think that could be part of the Vibration in the Steering wheel? Because I have noticed that the tranny is moving a little bit, when I am driving I can see the stick moving around a little bit. Its a t-5 transmission. It only starts the vibrate the steering wheel around 45+ faster I go the more it vibrates.