Welcome to the Stovebolt
I agree with Don, the RH-5's were outlawed many years ago for safety reasons so why take the risk. They have been known to explode even while airing up a low pressure tire!!!
If you have 6-lug wheels, head down to your local big truck junk yard and start looking at the old school busses for 22.5 rims. They are not that hard to find.
Mike B
