We had a vibrating feeling when we were driving at different speeds, felt like you were driving over a washboard. So I called and talked Bartel’s and talked to Trever, and he knew exactly what the issue was, but he wanted to take it for a short drive to confirm what he thought it was, and it was. It seems that the eight speed auto transmission was the problem. So, they changed the fluid, filters, etc. and the problem was resolved. I ask what if we had ignored and not brought it in for this repair what would have happened? We were told that the trans would have failed at one point and the repair would have cost many thousand of dollars, thank you Trever!!