Just round hole polished aluminum wheels?
Yep, I'm trying to match the ones on my F-250, but these will be going on my ambo/camper trailer I'm building.
I replaced the 1993 E-350 OEM axle on my ambo/camper trailer...
...with a Rockwell 10,000 lb. trailer axle.
It has 5/8" studs instead of 9/16" like the Ford axle, but the Ford rims fit fine after we ground off the alignment pins. No one will be changing tires on this thing but me, and I know to line up the valve stems opposite each other.
I know you change out rims all the time, and may know of some dually rims like this that are available somewhere. I also know most people don't want to break up a set, but I only need the rear outside rims. Of course, if the price was right, I could use the others as spares.
I could go to a larger diameter rim possibly, but I just bought the set of five brand new 16" trailer tires that are on there now.