I'm also running a 1.5in level and was wanting to run 275/60/20s but wasn't positive it would fit without rubbing. I've got a couple of questions if you don't mind. Do you have a pics down the side of the truck from front and back?? Also what is your front wheel well height through the center of the wheel?? I'm assuming no rubbing, but how close are you to rubbing with the +15 offset, I was looking at either +12 or +00 offset and would like to get an idea at what I may run into trouble wise. Thanks.