Thanks David. What is the 9/16" you are referring to?
I am looking to put an electric power steering (non-hydraulic) from IdCars (their Unisteer W360 kit) on my 74 and they asked these questions: what is the shaft type: double D ,or 3/4 round, or 3/4 double D? And what is the size of the steering column, 2 inches?
They also wanted to know about the tranny, if it's manual or auto and is the shiftier on the floor or column.
That's why I was asking these questions. I still don't know the shaft type. The 36 spline that you and Joules are referring to, is that to do with the shaft type?
The good thing with electric (as compared to the Hydraulic) is that I am assuming I can put a switch on it and shut it off any time I want (like when I leave a parking place) when I don't need it like with speeds over 20 mph.