[wrench87]

on the ffr cars there is a 2x2 square steel that goes across the frame from left to right, the steel bracket gets mounted to the side pipe tab, the middle hole uses the larger rubber hanger, they use a allen head bolt a washer go through the rubber hanger another washer then a elastic locking nut the lag bolt goes to the 2x2 steel on the inner hole there is a smaller rubber mount with a stud mount that to the hanger now on the other side of the inner rubber mount it has female threads drill a hole through the 2x2 and use another allen bolt to mount the inner mount. hope that helps.
if you go to the ffr forums and look around you will find some pictures.