Ummmmmm , that's a 07 and older truckI ran 37x12.5x20 dune grapplers on my 2006 f350 srw. The front only has a ready lift 2.5" leveling kit. No issues rubbing at all.
Currently running 35's (pictured) with more aggressive lugs, also slightly wider, and no issues either
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B.s, look at the above two pics, the red 07 and older and white 11 and newer, way different flair, opening, bumper, air dam
Oh but the above guys say it is so......Not to mention different front ends/suspension set up. Not sure if the turning radius is different.