[pipeous]

A torsion dif does act differently than a normal dif. it transfers power to the axle with traction. a normal center would allow a front dif to unload if a front wheel lifts where a torsion would sense the lift and transfer the power to the rear instead (torsen is torque sensing). you have to use special dif fluids for torsen difs too, kind of like automatic tranny fluid.

They change the way power gets laid down for sure. some like it, some don't. if I could afford to put torsens all the way through I would myself, as I like the feel they give though it can become twitchy feeling since all the power goes to a wheel with traction