[MetalMan]

Directly, no. Indirectly, yes. They do not offer any slip protection, but they are able to transfer power from a higher concentration to a lower concentration.

So if you jam on the throttle, naturally the rear takes more power. The center diff attempts to equalize the power concentration between front/rear by sending some power to the front. How much power it sends is adjustable according to the viscosity of the fluid in the center diff.