Those wheels are probably later model wheels. All chevy dodge and ford of the 60s and 70s used the same 8lug bolt pattern but fords had a large center hole. Your factory wheels should have internal clips and the proper hub caps should look like the c10 but have a lip on the back side like earlier hubcaps to accept the clips. I will see about getting a photo of one this weekend for you. You are still stuck looking for used hubcaps though. The c10s switched to the bumps in 61 but not the C20s.
Last edited by 66Suburban; 03/13/2012 3:57 AM.
