i bought a '50 chevy pickup to work on and these wheels and tires (c60-15) came on it. any idea what kind of wheels they are, or how i can find out? http://picasaweb.google.com/lh/photo/I30BCH5MIGTNc5y-sR7qyC5gUOnkvy4zzcbIWgQD__A?feat=directlink http://picasaweb.google.com/lh/photo/LjxijcLoK0ZC9sAFCBPJBi5gUOnkvy4zzcbIWgQD__A?feat=directlink