I have a 2016 F350 dually 6" lift with 17" rims and 37x12.5 tires. The tires touch together on dials. I like the big tires! I am trying to figure out what size biggest tires and rims I can put on that won't touch with duals? I don't want to use spacers. I am thinking 19.5 rims and tires. Will that work and if so what size tires?