Re: Wheel adapter question
Your truck has a metric bolt pattern 8 lug on 170mm. Ford is the only one with this bolt pattern and NOTHING else will fit. Unless they changed the bolt pattern back to standard for the 2011's, they WILL NOT WORK. Only ford wheels from '99-2010 will fit your truck.
Actually the bolt pattern on the F-350 dually is 8x200mm, it changed to that in '05 or '06. I have been doing research on this since the 2011 F-450 uses the same bolt pattern as the F-350 dually now.
2011 F-450 Lariat 4x4 (Ingot Silver) w/American Force 19.5's
2000 F-350 CCLB XLT 4x4 (Oxford White)