Thanks,that's what I heard elsewhere too.it seems Ford made at least 5 revisions.It's original!,....second style and very early..
The first style had a plug in the flywheel housing for setting the timing..
The title of this thread is "Bell Housing"
However, most or all of the discussion (and pictures) is concerning the "Flywheel Housing"
Is there an issue?
Per Google:
"Bell housing or bellhousing is a colloquial/slang term for the portion of the transmission that covers the flywheel and the clutch or torque converter of the transmission on vehicles powered by internal combustion engines"