Not sure we are talking about the same trans.
The trans did not feel like it is a fully synchronized trans, not sure though.
The T50 is not a user friendly speed shifting trans, it really not does like to speed shift that easily. You have to force it to shift that way.
A muncie or saganaw is really much easier to speed shift.
The T50's wear designed to run in 4 cyl cars A.F.A.I.K.
I would never recommend a T50 trans over a T5 for sure.
I just used 2 of them because I bought them pretty cheap @ a junk yard by making them look like a 3 speed for $75.00 each.
IIRC, they are a little bit longer than a saganaw or muncie 4 speed trans, I just happened to find a shorter drivshaft that fit perfect also.
Mine both blew up in a simular way, reved it up high in first gear & let off the throttle letting the engine do the braking via the T50 trans & they both seized up.
Other than that they worked OK & the OD was like .97 or .98 , not much of a OD. Going from memory.
MBHD