H22a LSD Transmission

Hello All,
I am very new on this i have been reading all the post and getting new info everyday.. Thanks to every one..
Question:
I just brought JDM H22a with LSD tranny. How can I tell without opening or putting in the car that it is LSD..
I just wanted to know this so that I am not ripped off before I put this in the car..
Thanks In advance

There should be "LSD" stamped somewhere on the transmission, otherwise look for the Tranny code, and if you can't find that, just look up the beginning of the "serial number".

if you can't find any numbers....look in the hole where you put the axle in..(passenger side of cource) if u can see straight through it..then it's lsd, if you see metal going from the top to the bottom then it's non lsd....i'll see if i can find a picture.