I ran 31x10.5 in my cherokee stock lift, no trimming.... it all depends on how saggy your leafs are, i ended up goin down to AAP and getting a 2 inch lift block kit for around 20 bucks, took me litterally half an hr to put them in alone. I would advise the 31s, they look great with the stock lift... keep in mind, at full lock they will rub on your LCAS, but not too bad. I ran mine like that for about 8 months before lifting it with f 150 springs and an s 10 leaf pack a few weeks ago, and putting on 33x12.50s