Im looking to get some sort of lsd for my J1 tranny, i was thinking of going with Quaife, this will be basically for a daily driver, is Quaife good, if not would would you recommend? I dont want a clutch type with clutch packs that will wear out.

What application would i buy the LSD for? The 90-91 Teg Ls? Or what.

I have been told jdm J1 and S1 trannys are the exact same tranny just came in different cars is this true?