Hmm.."our guys measure them on dealer lots" - No offense, but from my experience, you have to make DAM SURE that the truck is perfectly level or both sides can be off by .5" or more, AND ALSO, and I pointed this out to them when I talked to them (and the guy was like "Oh, good point, I'll tell the engineers"), the measurements are NOT the same between the various trims because of the different (or no) fender flare, as the fender flare wraps around and INTO the wheel well and adds about .5" down. For instance, you cannot compare a Rebel to a non-ORP Big horn, they might be very close because the Rebel's fender flare adds ~.5" down.