okay ive got this noise under my feet when hitting a bump in the road also when starting from a stop ? ive eliminated the following steering , shocks, wheel bearings motor mounts,the exhaust, front suspension., the trans mount looks ok but i am replacing that anyway . it feels like a someone is hitting my floorpan with a hammer real fast ? body mounts are ok. univesial joints on main drive shaft are new? i have a 4inch lift with transfercase drop??? any help yu guys can give would be helpfull cause i live in ny and there are lots a potholes so this bangin is there all the time and IS PISSIN ME OFF. thanks guys.