I'm on 39.5" Iroks, stretched wheelbase to 109" and 4" springs. I had to do a ton of trimming in the rear since I extended the WB. I also tubbed the firewall and trimmed the front fenders. My front axle is fully built, 30 splines, Longfield hub gears, ARP knuckle & hub studs.
I don't think they are too big, perfect for the type of wheeling I like to do