Check out this ad on the bag... METAL block off plate. I have two, but they are both plastic. Is this a '68 only item perhaps? Anyone have any ideas?
http://cgi.ebay.com/ebaymotors/Mopar-19 ... 2566f88475
http://cgi.ebay.com/ebaymotors/Mopar-19 ... 2566f88475