This 3-speed trans is gonna have to go...

First off, you don't "double clutch" to get low while rolling with a non synchro first gear. You don't put it in low until you come to a STOP. PERIOD. I drive my 75 F250 with a Borg Warner T18 4 speed with a non synchro first gear. Every. Single. Day. I have zero trouble. I think a lot of what you are experiencing is your own impatience and you are simply trying to rush driving the car. It's not a four speed with all synchronized gears. It's a non synchro three speed with an archaic column shift. Could it be possible that you just might be expecting it to be better than it is? No one here has berated you or made fun of you.......we just poked a little fun. You know.....like friends do? Now, don't you get offended by what I said here.......instead sit down and actually think about it. Your car isn't a fuel injected almost drive itself POS cookie cutter modern crapbox that any moronic idiot can drive.....and will almost drive itself. It was build in a time when everyone with any sense at all knew what that third pedal was for, knew how to start a cold car with a carburetor and knew what manual steering and manual brakes were. Once again.....nothing personal. No offense meant. I just see a lot of younger people who have zero clue about older cars. We had a guy worked at the transmission shop I helped run the office of for a while. They actually hired him as a mechanic's helper. This kid wasn't 25 years old. He had NO CLUE how to start a carbureted vehicle cold.......I kid you not. We had an old Dodge D50 truck in the lot. Boss told him to go out and bring it in the shop. He went out there and just kept spinning the starter. It would start and die. Start and die. We were all sitting in the office eating breakfast wondering if he would ever figure it out. He didn't. I walked out there, stuck my foot in depressed the gas pedal once to the floor and hit the key. Instant idle. Times change. Things change with the times. It's a fact of life. Us older guys get a kick out of seeing this kinda stuff.......forgive us our evil sense of humor. It's bittersweet, really, in that one day, none of these type vehicles will exist anymore and no one will give a ****. How about letting us old guys give a **** without too much lip?
I thought you were tired!