I've got to say there seems to be more going on here. If your rear end is 1" lower than your front with the 5100'S adjusted to .85" you should investigate a little more.
Check out go Go Rhino nerf bars, they're exactly the same and cost less. Go Rhino sticks their badge on them.
I just switched out my Westin Pro Traxx for Rhinos. The Westins hung too low.