I did the 5100's on my 2010 FX4 and put a set of Raptor wheels and tires on. I do not have any rubbing in the front at all. I only get rubbing in the rear when off road, but I usually have at least 500lbs of gear (wood,cooler,gear) in the bed. Minimal gear and she only rubs in extreme articulation.

I would like to add a spring or something in the rear do to the sagging when loaded down, otherwise she rides great and is nice and level.