I run 15x10 steel wheels with 3.25" BS on my dana 60 and disk braked 14FF. 15" is the only way to go in my opinion, tires are more avaliable, cheaper, and more sidewall for airing down. I had to grind my calipers front and rear but no biggy. The less backspacing the less grinding will be required. I would suggest BS of 3-3.5" You have to run a steel wheel because of material thickness. Generally a 15x10 8 lug wheel runs $50 each in a black wheel and like $60 for chrome. Go for the 15s!