The 5/10 lug 22.5" rims are getting hard to find. This is because most trucks back then were bought new with 20's (even though the 22.5's were standard equipment), so you're now in competition with those guy's who are trying to replace their RH-5's with the correct 22.5" rims.
To make things worse the 5/10 lug 22.5" rims were only found on the 1956 and up 4000 Series (1-1/2 ton) trucks, the 2-ton trucks had 6-lug rims.
Mike B
