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Its like everything in life, it just best if you are honest with yourself regarding how you are going to use your truck..

Even 35" tires rub on the liners at full compression so 37" tires would of course do the same.  With standard wheels and backspacing you would likely be OK as long as you where gentile with her (assuming you folded or cut all of the pinch welds in the fender well and re-secured the fender well liner with screws or something similar) you will be OK, E63 (from the board here) has this exact combo and has had no problems.

However, as I went with the Methods and they have more back spacing the tire now makes contact with the fender flare (which is now the lowest point) and there is no trimming in the world that can fix this.

Also, knowing my personality, and how I drive I kind of knew in the back of my head that I would likely need glass fenders.. but I wanted to give it a go anyway and the first thing off road I did after getting my truck back was jump it at Barstow, which actually was not the telling factor, its nose diving into whoops that did the most damage as the jump as I was only going about 50 over the jump and the whoops might have been as high as 85..

So in summary, standard wheels + properly trimmed fenders + easy to moderate driving you will likely be ok, methods + spirited driving not so much...