So, i know this is an old conversation, however in the last 10 years with all of the vehicles that have been scraped it is harder to find wheels that fit 3/4 ton trucks and original chrome hub caps. I called a lot of salvage yards and friends with different brands of trucks with no luck finding rims that would not hit tie rods ends when turning. The rim I found is from Dexster trailer axles, 16x6, #865 17-153. with a little work i can weld some tabs onto rim to fit center caps. Hopefully helpful for someone down the road.
1949 3600, 1965 Mustang Fastback, 1965 Mustang convertible, 1966 Chevelle, 1929 Dodge Brothers Sedan