I have the original five split rims from my '67, and they look like the black one in fatman's pic. They don't have the same type of dog dish hubcaps, so they don't need same mount. There are spring clips on the inside of the lip that hold the hubcaps on. I think fatman's wheels could be GM wheels. I don't know what other manufacturer's split rims looked like, but the only difference I see in mine and fatman's is the lack of a gap in the outside (split) rim, as in 1969 GMC's pic.
