Specs for steering spline shaft and PS Gear Box

[aboyer]

Hello,

I am sure someone has this information I need. I am looking for the size and spline count for both a steering gear box and a steering shaft.

I have a 1968 power steering gear box, and I think it is 13/16 36 spline

with a

1972 Tilt steering column shaft, that I think is 3/4 36 spline.

Does anyone have the specs for the various size trucks and they years they used on the splines? I have tried counting these, but they are too close to each other. Any input would be helpful.

Thanks,

Adam