I'm running '37 Chev wheels on my bus, many, many rivets on the artillery wheels. I sealed my rivets by spraying them with a can of rubberized undercoating, as I was too cheap to buy plasti-dip. I don't use tubes, and in fact, mounted the tires on the rims in my backyard. No leaks, no troubles. These are 205 60 r15 radials I'm speaking of.
