'65 and earlier A body speedo cable

Gears are based on the transmission side, do you know what size Transmission the cable was removed from. Also I have a 65 and there are two different speedo's that can be in the dash, 80 mph or 120 MPH, so identify both ends may help.
It came from a shell that was turned into a nostalgia gasser so I can't be sure of its options. You can still access the pics by clicking on the jpg numbers above, maybe that will help with identification. Thanks