There's been some remarks about converting earlier cars to self adjusting brakes. Part of a brake conversation over at the Ford Barn led to this HAMB link. It's titled 54, but later on in the thread threre's how to cross reference 55 & 56 shoes. I thought some might find it helpful, there's a complete parts list.

http://www.jalopyjournal.com/forum/threads/self-adjusting-brakes-for-a-54.899224/

miker
55 bird, 32 cabrio F code
Kent, WA
Tucson, AZ