Tranny qs - Mostly zc

[Venom TypeR]

First of all, I here that some ZC trannies have LSD, does anyone know how difficult this is to get?
Also, if I have a DX, will I need new axles and intermediate shaft to swap the si tranny in?  cause I know I will need to, to do the ZC tranny...
And, will putting the Si final drive in the ZC tranny make it top out sooner or later?
Does anyone know anything about aftermarket LSD like Quaife's?  Are they available for Si/ZC trannies, are they expensive, difficult to install, stuff like that.
Thanks in advance

[marked001]

I've only seen LSD zc tranny's for sale like once, maybe twice...so they're probably pretty rare. I dont know if one of the 'typical' importers could get you one and I honestly wouldnt trust them to do so anyway as they'll probably try to rip you off.....

you wont need new axles for the si tranny....

the si final drive will give you a slightly higher top speed, but that's really not the point, its to bring the rev's down a bit while freeway driving...