My wheels are only 8" wide. I think theyre 4.25" backspacing....i think.nThe tires definitely don't stick out 2". In fact they are pretty much tucked. The fronts may stick out some. Its been a while since I've seen the truck with those tires. And oh yea...I've got 1/4" spacers for my wheels as well. I Google the backspacing of my wheels and came across this old thread. Kinda funny, I had forgotten all about this. Big'un says 35x12.5s will actually fit with stock wheels. http://www.fordfullsize.com/forum/f82/will-tire-wheel-setup-work-2889/ Sent from my Xoom using Tapatalk