hey there. I am new to this site. actually never needed a forum before. I build older harleys from the 70s mainly and this is my first car build. a 1940 plymouth p10 business coupe. I am having problems finding a transmission decoder. the bellhousing serial no is 853853-4 and the tailshaft is 853880-5. i actually do not have the vehicle yet. it is being shipped from montana. i believe it to be a 3 speed fluid drive transmission but am wanting to make sure and also i can't find anywhere a manual for rebuilding this transmission. please help me
