if we are looking at principles behind the diffs and their actions, the ball diff doesnt feel different because it is slipping, it shouldnt be slipping if it is built correctly, the acvtion of the ball diff changes when torque is applied due to the pressure of the plastic diff cage against the balls partially locking up the diff. i can remember people experimenting with holes filed to different shapes in an experiment to change this effect in the days of the old cat xls, with elliptical and triangular holes instead of the ordinary round ones to change the feel of the diff
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