im just recommending for the s-box, a look at the kit jungle sells includes 3/8" thick dom tube that mount bolts and box finish with, dom welds to both box sides, ive seen alot of frames with same damage usually from running big tires. the rc is just running, no dshafts, and cooler/condenser/radiator next, with body metal as runner up, lots of work left. complete d-line transplant from '92 w250.