Need column to floor shift A/T swap advice!

At one time I considered doing this on a 66 cuda I have. I didn't have a manual shift Abody to take a steering column from, but have several push button B bodies. The column housing appeared to be the same,and I believe the post from the abody would fit the housing if the splines were not the same.This would only work from 64 down, 65 has that wierd shifter mechanizem (sp?)