to answer some of the other questions as well
No wrecks,
no transmission differential or suspension work done since we have owned the car we got it with 54,000 miles on the odometer
AS to left, right or center I have not been able pin point it myself. It does it at full lock on the steering wheel, and like I said in the post above it does buck/jerk when it is making the noise and you can very noticeably feel it in the steering wheel.
Thanks