Ya I know a guy here in Finland who has Combined the R200V Viscous LSD and the R200 open to get a visvous LSD for Silvia. He had to have new halfshafts made for him, 200e a piece.

Yea, the facelift Z31 Turbo's had a 3.7 R200 clutch type LSD. Starting on 4/87, with only exception being the 1000 pieces SS Edition that was only made 1000 pieces in 1988, with pearlescent white color, recaro seats, etc, they had a viscous lsd.

Well, I guess I just have to try to find a facelift Z31 turbo's rear diff. That will most likely be a direct bolt. The only thing is that in my country there are only a handful of those, gotta import it from somewhere else.