Ok, here’s the story…
Yesterday when i got out of work, i went off a little fast and today when i came back, i saw my trace on the asphalt… but it came from my left wheel… so i was wondering (isn’t the right wheel supposed to spin on an open diff). So i went to a dark place and tried it out, and i made 2 nice rubber patches. I still didn’t check anything else, cause I just did the burn test before coming home. So any of you seen a vlsd on a stock 89-90 before? I thought they only came on chukis (91-94). Mine is auto and fully equipped (PW, PL, Cruise, AC, sunroof). Was there a special option you could buy with everything? Sh*t, if i got vlsd already, I’ll swap out with my manual tranny asap before the winter kicks in… hehe. I wanted to find one anyway, but if I already got one. One less thing to bother… 
i remember with my other s13 i tried it out and i remember i had made only 1 rubber patch with right wheel i think. i was able to make donuts tho in a counter clockwise motion. it was a totally basic model. Absolutely nothing included. But at least it was manual. 