Although you don't plan on getting too extreme off road, It never sounds good when your suspension travels more than expected and you tire starts to grab a wheel well. I've got 35 inch toyo m/ts with a 6 inch lift and 2 inch body lift and I have some nice chuncks missing because of my rear wheel well got hungry. (and trust me, if you have boggers on there then you will get into more hairy stuff than you bargained for simply because you can and I've seen boggers rearange body panels with ease. I always air on the more lift side, but thats just me...