Originally Posted by Gunner
I believe on your 08 you can do 31's easy and 32's if you don't wheel hard on your stock wheels. If you go to a shallower offset with either spacers or new wheels at 4 inch or 3.75 and do some trimming on the fenders you can do 33's easy and maybe 35's if you don't wheel hard.
This is about right. You can do 33's if you don't wheel it much and/or disconnect the sway bar.
I did 33's with no lift for about a month or so. Even without disconnecting the sway bar, it would rub the fenders off road. You could still do it if you don't mind the rubbing. It won't break anything.
If you don't want rubbing and want to disconnect, 32's would work. If this is the case, stock Rubi take off wheels would be good. They're 32" BFG MT.
If you're planning to lift and might want larger wheels WAIT UNTIL YOU LIFT. I got 33's, lifted, got 35's about 9 mos later...