compatible tranny

[N rogge]

Hello..me again

I have some questions for all you se-r gurus out
there.

some people told me the last time i posted that that
an infinity g20 tranny would would work in my 92 se-r
but when I search used trannys they ask me if i need a
locking or non-locking differential.  i don't know
what to look for.  Will a 98 200sx tranny work in my
car? if not then what years are compatible with my
cars tranny?  please let me know thanks a lot.

EXhodag