Those wheels are from JL's Hispano Suiza.
But the rims and tire can be founf seperately scattered amongst JL's back-log of releases.
Wyatt's site has a wheel chart, but I don't know if it tells you what wheels are on what casting.
Now I have this stuck in my head. I found a bed today. Bob... what did you make the topper out of? Got to keep the tools dry. Lummox's brush reminded me of when I was working with a tree trimmer. We had a flat trailer behind his pickup and started loading from the bed back. By the time we got to the landfill the guy there was looking under this pile of brush to see if there was a trailer. He thought we were just dragging the huge load...lol.