GM steering spline question

[speedjohnston]

I have a Lee power steering box and I have the wrong woodward shaft to steering box adaptor (it was for a manual box). On there web page they list for a 700 series and a 600 series box. I know its not the same as the 600 spline but is this 700 series the same? Anyone know the diameter and spline for sure off hand of the Lee 800 ps boxes? I don't have anything to acurately measure it with tonight, but I do have an idea wich one is right, I just don't want to influence what anyone says.