When we asked for a friend to bring us a stock final drive, they told us it was from a non-lsd trans. Im sure it was sitting in a pile of parts so he couldnt be sure. We never really inspected the OEM final and just sent it off and assumed that is was a stock OEM non-lsd final.
After further review of the complete pc when we got it in, it was confirmed several times over that is was indeed made for LSD boxes.