IMG_0841.jpgHer is a couple of pics from my 40 Merc sedan of the torque tube and drive shaft that I removed. I installed a c-4 trans with adapters and open drive shaft kit, adapted to the original flathead motor.
The torque tube measures 74 inch's end to end, and the shaft measures 77 7/8 inch's end to end. Don't know if the Ford shaft and torque tube is shorter.
Second picture did not upload, will try again.