A couple of sources I have had success with for odd-ball stuff like this are Southside Obsolete ("barndfind08" on this forum) and Shoebox Central, who seem to have a bunch of used parts https://shoebox-central.com/52-53-ford-parts.
This is what you are looking for. Good luck, they are one of the hardest pars to find, if you own a convertible. The are made out of pot metal, and are very brittle and break very easily, if you stress them.
This is what you are looking for. Good luck, they are one of the hardest pars to find, if you own a convertible. The are made out of pot metal, and are very brittle and break very easily, if you stress them.