Does anyone know anything about the Phantom Grip Limited Slip?
http://www.phantomgrip.com/


They offer one for a 300zx R200a application.
Which is what IFS xterra/frontiers trucks would need.
It's around $360+/- and appears to drop in similar to a lock-right, not requiring a gear set up.

It seems to work like a Lock-Right Locker only this reuses your spider gears and preloads for a limited slip.
Don't know if I like the idea of reusing the spider gears.

Would this "lock up under torque" idea work for offroading in 4 wheel low?

Just looking for an alternative to the 300zx LSD since they are really tough to find, and probably wouldn't perform as well as this should.

Any ideas?