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Well, sorry guys... but none of this is actually answering my questions.
I would like to know just how it works......
does it use fluids?
how does it control both wheels/axles separately?
what parameters does it use to make this control happen?
Dubbed eLSD in GM speak, the suggestively named diff comes standard with the Z51 Performance Package, and employs a hydraulically actuated clutch that infinitely varies the amount of engagement, going from open to full lock in tenths of a second. Fully integrated with the stability-control and Performance Traction Management systems, the system controls the differential according to an algorithm that factors in vehicle speed, steering input, and throttle position.
Basically, it works a lot like a regular LSD, but used fluid to vary the clutch pressure.