I have a 2000 Volvo sx outdrive on a FourWInns that I just purchased from my brother inlaw. When I turn hard to the left or right I get a vibration in the Transom area of the boat. My brother in law says it has done this since he has had it, he bought with 96 hrs on it. It now has 185hrs. I was thinking either U Joints or Gimbal bearing. Is this Normal? should I worry about it or have it looked at?