I just replaced the forty year old transmision mount with a new poly mount. Before the change the trans squashed the old mount almost to nothing. The new mount moved the trans about an inch and a half higher. I figured the new mount would reduce any vibration. New u joints front/rear. I plan on turning the drive shaft 180 degrees to see if it helps. I just want to make sure I don't have the wrong flex plate in it. Other then a cut out it appears symetrical no weights, just the absence of weight. ie cutout. Everything I can find to explain which flex plate I need seems to fail in giving a definite answer.thanks