Im going to bolt a Large piece of angle iron onto the frame inbetween the radius arm mount and the body mount, then im going to run two pieces of tubing to the slider as wide as I can run them and Ill see what it looks like, if there just isnt enough support, Ill run a couple of stringers to the body mounts. My sliders are 54" long, and im bolting a ~2ft piece of angle onto the frame... Im sure I wont get too much action on the front and back parts of the sliders, so I might be fine with the tubing at a 30" separation. Either way, I dont see it being any weaker than bolting them right to the body mounts...