I bought these for my 2012 2500 (no factory extensions). The quality seems to be good. The box came crumpled with no instructions. In any case, mounting mudguards is not difficult. When I fitted them I noticed that they didn't match my inner fender liners at all. I used factory screws that fit two holes. I used the remaining screws to hold the flaps in place. They fit well around the body. Overall, they're good enough to keep mud from getting on the side of my truck (living on dirt roads stinks).
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