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?

Last edited by Old GMC Gold; 10/30/2013 4:58 PM.

57 GMC LCF 370
55 John Deere 40-W
59 John Deere 430-W
2000 GMC 4x4
56 John Deere 420-W
Pix on Photobucket