Got the idea from Rich Costa ( Costa Fab) Than put my design to it. The Sliders don't mount to the frame. The rocker panels where cut out and the Sliders were welded in there place. This got me 2 1/2" more ground clearance under the Sliders as the bottom of the Sliders are now about 1/4" above where the pinch seam used to be. I all so think it gives it a nice clean molded in look. Yes I waited to try them out before I posted. Went wheeling Saturday and landed on them hard a couple of time and they didn't budge. The rear Bumper was designed to give the best departure angle with a clean simple look.