Check out 68EB's gallery. He's running uncut, 3.5" of total lift and 31's.
My plan is 1" BL, already in place and 2.5" suspension. 31's (on a 7" wheel) to start then 17's in either 255 or 265 when I have more cheddar to throw at that option.
JCWalsh1 is running 2.5" SL only and 255/70/17 on a 17x8 w/ 4.5" BS. That's basically a 31x10 tire. No rubbing issues.
From everything I've been reading (alot) 31's are fine as long as you stick to a 6" or 7" wheel with 3.5" total lift and proper back spacing. This is for street use, off road and really trying to flex, a 30x9.50 might be the better option. I'm sure those who know more than me will chime in.