"I can find 19.5" tires, its the 10 lug wheels I want and like scott says, you gotta make sure they fit over the drums, I don't see why they won't if 20 inch rims fit over the drums with room to spare"
I think the reason may be that a 20" tube type rim is 20" whereas a 19.5 tubeless wheel is really only 18". At least it takes a 22.5" tubless wheel to equal a 20" tube type wheel.
