I just swapped out my P-glide for a TH350 in my '65 Elky. Was able to modify the original column linkage/cross-shaft/etc. to mate up and it works beautifully.

The obvious problem is there's now an "extra notch" in the gear selection sector that the car doesn't know about!

Park is Park, and the car starts. The dangerous thing is the "spacing" for neutral on the column & original NSS now corresponds to the DRIVE(!) position using the TH-350! (I can crank/start the car IN GEAR)

For safety's sake, operational sanity, and peace of mind I want to get the NSS (especially) and the backup lights to work in correspondence with the actual (new) gear positions.

The question:
Would a NSS/backup switch from a '66/'67 (with a 3-speed trans) bolt-up/work/connect to my '65 column, and have the electrical contacts spaced in the "correct" positions?

65 is totally different from 66-67. I had to use the Lokar trans arm and shift rod. The arm is slotted so you can change the "throw" of the trans shift. You should be able to get P R N D with this setup.http://www.jegs.com/i/Lokar/625/ACA-1800/10002/-1?CT=999&sendroicid=bbef8492-2d00-41d6-b158-38db0de2603c&sendroiad=1664067519&sendroikwd=Lokar+ACA-1800&gclid=CJ6xnbDTuZwCFQhV2godU3xknQ#

I didnt have any problems with mine in my 64 when I went from the power glide to a 350, had it there for a year or so before I went to the florr shifter... now that was a P.I.T.A. cause I also put in a 700R4.