Transmission for push-button Barracuda
I seem to recall in 64 they had a plastic dash bezel that would cover the hole in the dash for the push button assy. A 66-auto steering column would give you a modern shift linkage for an automatic, A 64 pushbutton column would suffice for a floor shift. If you stay with the push button, be aware that 65 transmission is set up as a column shift by cable.