Thank you. That is the exact info I was looking for. I want to run 255 tires and 8" rim. Just not sure how large a rim I want. Part of me likes the low profile look and part of me likes the 15" rim with lots of tire look.
I was in the same boat, I like low profile tires and nice big meats.
I did not roll the lip at all. I also ended up moving the rear back 1 3/8" to center the wheel in the wheel well. When I moved the rear back, the tire does get a little closer (3/8") to the quarter panel where it starts to cut back in to the lower quarter. A little rolling there will fix any potential issues.