Weathertechs will curl at the edges after a while, I've owned 3 sets and they all did it. Went with the Husky "Xact contour" this time around, much better quality, thicker rubber. No curling at all.
I went with the Husky Liners based on the same comments on Fordtrucks.com. They are a great fit in my 22 F250. I tried their rear wheel fender liner, they were as bad as the mats are good and went back.
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