1948 F1 Distributor Identification

[porscheman7@gmail.com]

Hi everybody,
I’m looking for a distributor, used or new for my 1948 F1 with a 239 in.³ eng.
can anybody tell me the distinct differences between distributors in these model years? I believe the shaft is different at the bottom. Distributor that I have found has no extension below the gear. Can anybody clarify what distinctions I should look at?
I will try to post pictures of two distributors that I have.

 

[tubman]

There are 4 different timing covers for 8BA's depending on material and piloted shaft. See this post for more information : https://www.fordbarn.com/forum/showthread.php?p=2106674&highlight=distributor+cover#post2106674.

 

[porscheman7@gmail.com]

Thank you so much for taking the time to respond to my question. The information and the link that you provided were very helpful. I should be able to move forward more confidently now.