I am changing out the tires and rims on my stock 02 F150 2wd. I would like to put 305/55/20 AT size tires, but I not sure it they will fit in the well without rubbing in a fulll turn. I have sample fitted 50 series, and they don't rub, but I like the stance the 55's will give me, etc.

 

Those are basically a 33x12.50-20 tire. I believe you are gonna need a lift kit to clear them.