I don't know too much about the factory wheels for a small (1/2 ton) truck like the A.D. series, but I bought some wheels from a swap meet this week-end. They are a 6 bolt pattern and fit the 17.5" tires. They also have a series of tabs in the lugnut recessed area for the hub cap. Tomorrow I'm taking them to work to dismount the junk tires and spin them on the balancer.
The question is, did any early Chevy 1/2 ton trucks use a 17.5" wheel? I bought them because the guy said that if they didn't sell, they were going for junk. I have all four and all four have all of their tabs. Are there any hard core resto guys out there needing anything like this? After I get the tires off and take some pictures, I'll post them up in the swapmeet.
Scott