I first used this system on a Meyers Manx, the first dune buggyt, in the 60's. There were no traction aids for a veedub diff, so we had to finagle it. It works with lsd's, by preloading the lsd clutches, and will work somewhat with open diffs to transfer some of the torque to the wheel with most traction, not near as much as an lsd, but some is better than none, and it's gotten me out of stucks.

It is no replacement for an lsd or locker.

Not responsible for advice not taken...