Ok i have a 94 gt an iv been hearing a weird noise from tires i thought.it sounds like something in the tire like a thumpin or slappin sound. But nothing there.and it will do it on accel or decell even when coasting.5speed by the way.i have put new axels, bearings an seals an all cntrol arm bushings. When i jack it up an let it run i hear it in 3rd an4th gear like a clunking sound from the rear what could it be?