LSD question

[fjp510]

hi guys
I've got a drum brake rear end in my
gq wagon with no LSD and was given a
centre with the car but am hearing that
it might not fit. my question is is there
a difference between disc and drum diff centers
ie will and centre fit straight into
my drum rear
thanks people

[fjp510]

just checked it and it says MN41
so should be all good
thanks for your help mate