4-Speed Rebuilder Recommendation

desmo900 said

I had a reputable shop near Portland , OR that specializes in Muncie’s rebuild it originally. My builder had to send it back to him after it started leaking oil before we even ran it. He “fixed” it and we reinstalled (several years ago). Finally got around to getting the car on the road and she won’t stay in 2nd gear. We ruled out the linkage. Conventional wisdom says it’s the 2nd gear synchros. I’m hesitant to rebuild myself for fear of missing something like this. I’d rather have someone with direct experience with the A833 do it.

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Sounds like you probably need new keys and springs, classic symptom of popping out of gear when you let off is bad keys. That’s the problem with shops that don’t know these transmissions specifically. 4 speed transmissions all basically work the same way, the thing with A833’s is there were different variations of the transmissions over the years, mix and matching parts causes nightmares with this kind of stuff. I have got transmissions in with 2 different style hubs in them, one early style narrow key and one late style wide key. This and the wrong shift tabs/linkage are the 2 biggest problems I find when things don’t work correctly. If I can recommend anything, make sure you do your research, and or have someone that knows these transmissions do it for you.