How many of us are there? Owners of Dodge based RV's?

Hi Rudy. About changing your 16.5" wheels to 16"--and I'm sorry this is off the top of my head, but it will get you started--Dodge 16.5" can be switched to Ford 1980s and maybe 1990s (up to about 1997 or 1999) 16" dually rims. I've found them at the junk yard cheap. But you have to have the same diameter bolt pattern, same hub size, and I'm not sure if your 1973 uses locating pins/holes or not. So if you like field trips to the junk yard, happy hunting.