Bad knocking under feet

I'm not sure you can much. You can try lowering it at the rear hanger.

Update: She is not sitting pretty. We still have a bad knock and its not the exhasut. The car still wont start until you let of the key from the furthest back position. The front wheel alignment has become even worse. The toe changes when we drive. The front left wheel almost seems as though it recieves more steering than the left side. Adjustments made from the sleeve, between the tie rod ends, does nothing. The car still wants to die after pressing the breaks.