Well as this was an OEM block,crank,bell,transmission,and OEM style clutch that measurement would not be an issue with most of the guys on this site.It will not effect the operation of this project.
I knew that some of you guys with aftermarket parts and $3000.00 clutches and and old Pro-Stock cans with Lencos would pipe up with all the "racecar"measurements,we didn't measure the finger height with a dial indicator,balance our wheel with the plate,or check plate clearance with the pedal on the floor.These are all things that are needed with a "RACE" tranny installation.This was intended to be viewed as a guideline to install a transmission for a "STREET/STRIP" fun car.
Gus


64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60