Yeah, I am aware of the wheel thread. There's a lot of good information in it, just none that pertained to my question here.

Anyway, I did finally get all my wheels broke down. I was very pleasantly surprised to find them all in relatively good condition. Pretty much confirms my suspicion that this truck spent the majority of the last 40 years stored under a roof. Some of the wheels even still had the original black paint on the inside. I was shocked to see that. The very worst one is really still in good shape. I'd still like to find a couple spares though. My wheels are Firestone AR's. 20x5.

1950 4100 - unrestored and driven weekly for almost no reason at all.