I think you're looking at custom steps there, don't try to attach them to both the frame and the body - either/or - and I'm going to suggest you consider a single full length step, that also acts as a slider. Every time I see a truck with individual steps I cringe, you need to know where you're driving, but the way I see it is if you're driving off road, sooner or later you're going to get caught with something between the steps.
