I already have mudflaps on the rear of my "01 4x4, but they are not quite long enough to completely protect the paint, so I had Rhino lining applied to the space to the rear of the wheel openi9ng to the back bumper and as high as the top of the wheel opening. Since my truck is patriot blue, the black Rhino doesn't look that much different, and in fact, it looks pretty good. After they started working I remembered that they have colors. Too late, but no big deal.