Looks like enough clearance. How do you think it will do with weight in it? Dead set on not running spacers I have had issues in the past. I probably won't put more than a few thousand pounds in the rear but I do tow a 18k lb gooseneck with it occasionally. I have 19.5 wheels but they need attention. They are off a P30 bread van an stick out a little more past the fenders than I like but look cool. it is the full width dually with the D70HD.
Thanks