Originally Posted by Old GMC Gold
Mine have 6 -lug with piloted studs. If you scroll down to the topic "Any Big Bolt Guys into Cannonballs? " by Goob. and click on his photos. The yellow truck with the side view, looks identical to mine. From the pic. I would swear those wheels look like mine and are the RH-5* wheels.
I have received plenty of advice as to why I should trash mine, but so far, NO advice on what will fit/work on the truck in a 20" wheel. Surely they made some "safe" 20" wheels?

Old GMC Gold,

These are not 20 inch, but maybe they'll fit or help you. Came across these in my searches for 22.5s. I'm not sure if they'll fit your application, but it might be worth a shot if you don't mind paying to ship them.

http://nmi.craigslist.org/hvo/4127293247.html

It would still require changing the rubber out, but I remember you were looking for a set of 6 lug wheels.

Jonathon

1957 GMC 100 NAPCO
1960 Chevrolet C60 Viking
1962 GMC K1000
1962 Willys Station Wagon
1965 GMC C1000
1972 GMC K25