I'm definitely not 100% certain on each model and change but I believe the 65 was still cable operated. I had a 64 cable operated 727 but it was the pushbutton style and wasn't working out.
My 727 is external lever operated, so I'm trying to find a way that I can make that shifter work with that if possible. I've already found one "solution" but just trying to see if there's any other options.
Above is an option I saw that seems to adapt a cable to work with an external lever. I'd have to call to get more details on it.
From what I can see of other shifters and kits they come with, they all use a cable as well for the external lever operation so I was confused as to why aftermarket shifters use a cable for the external lever, while the stock shifter can't seem to do that. I haven't found an exact reason anywhere so I was assuming it was the spacing of the positions on the stock shifter.