bigfellazinc

I have a c-4 tranny in my 1931 model a. I am needing to find out what year its out of so I can get the correct front pump seal. The tag shows the following.

Part no. E0ZP 000 ABA
Serial no. 68027 LO

I have searched and found nothing on those numbers. Im confused can someone please help me out.
Thank you
Aaron