so do you think that the 40mm is anything to fuss about or get it lengthened?

you need about 20mm(i think).
if you set it up to be hard in there what do you think will happen when your going over bumps and the tailshaft wants to move in and out slightly inside the gearbox.it wont move and you may wreck things.
on my toyota 5spd i have around 20mm moving room inside there.
anyone is welcome to correct me.

lol, it's a bit hard to disclaim thats it a stanza box because the person i bought it off put it together himself so i dont know what to make of it , maybe needs some kleenex for his mouth?

maybe he has one of the very rare factory option 1 nismo gearboxes a 63 with a factory a series bolt pattern?

You cannot fit a 60 front case on a 63 box. The box is physically bigger.

You can cut-n-shut it -- maybe that what he did. In that case it will still say 63, cause the numbers are not on the bell part of the front case.

It's more difficult dd as he said the old owner states they put a 60 series bell housing on a l serues dog leg 5 speed- unlikely as we know but he needs to know yoke size to work out what box he has

Quote:

Easy - if it says 63 anywhere on the transmision, it is large output. If it say 60, it's small output.

Auto uses large input- there's a pic in wiki- I'm not home to measure currently.



L series 63 series #1 not #3

how would i know if its a large input yoke and a large output shaft?

ohh and the loud vibrating was because my flywheel bolts started snappin and i was running on like 4 bolts