I second the Dually Valves, I ordered Dually Valves #DL1EC for rear dual tires on my 2005 E350 chassis, Les Schwab installed them for me, after I purchased them on line the manager at Les Schwab said he could have sold them to me. Best money spent can check air on all tires in ten minutes. I did need to in-large one of the round holes in my SS Wheel Masters.
I don’t think I would like the Wheel liners that need to be bolted on with the lug nuts, my Wheel Masters use four hrome nuts to bolt to the top of the lug nut. Dick