That is a nice post. I knew about the truck wheels. I have 4 of the correct ones on my truck, but my spare is a post 64. I need to find one more that is pre 64 so I can put a "dog dish" cap and trim ring on it.
I have no clue what the width on them are though. If you find out when the switch to 5.5 was, please let me know. I want to put the correct ones on.
Mine is a 56 f-100. Thanks.