73 spool trans mount/ Drive shaft Blues..

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I like to push the yoke into the transmission and bottom it out. Then pull it back 3/4 inch - 1 inch. Measure center of the yoke eye to the center of the differential yoke eye, that is the length of drive shaft you need. Tell the drive shaft maker how you measured. "Eye center to eye center is XX.XX length."
I stabbed it in, backed out 1", its 48.5" just like @Oldmanmopar said. Jeez, there's some smart guys on here!
I guess it's timeto cough up the cash for a new shaft.
I sure appreciate all the help guys! :)