Yes a little more info can Be helpful. Because a AT convertor Will do what Your saying I know BEEN THERE had That Happen. Also Is Their any Type Of Rattle at start Up Or Shut Down??? If So this could also Be a Lose FlyWheel Issue.
More info Please But hope all This helps so far For things to be testing/Looking first.}[oooooo]

Ps What do you have for a Dampener?????


Larry/Twisted6
[oooooo] smile
Adding CFM adds boost smile
shocked God doesn't like ugly.