One of these days soon I will get off my arse and get that Chrysler carb in front of me (again) and maybe do some old school driving again this summer. Maybe.
This. The one and only time those things almost got me killed was coming down out of the mountains on I-70 after a ski trip one day back in 1984. I scrapped that car and bought one with discs on it, just to be safe.
I modded the stock fueling on my '71 TnT to use an electric pump mounted at the tank, running the line along the frame all the way to the core support, thru a better filter mounted there, and then back along the top of the fender across the engine bay, straight into the carb.
That was the last...
Sorry, I didn't think anyone in their right mind would consider a transmission service on one of these things without a full drain, at this juncture. Fluid prices are going up along with everything else, I suppose.
Use Dexron-VI for the best performance in an old Torqueflight. It's a synthetic Dex-IIi friction-mode backwards compatible fluid that will likely never need changed again in that gearbox.