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Wind up happens when there is no centre diff, the driveshafts literally wind up like liquorice sticks.
What happens on a Landrover is the feeble centre diff is not designed to act as a differential, and it wears out if the tyre sizes are vastly different.
(On a freelander there is no diff, the viscous unit simply seizes up if you try to make it slip)
If it suddenly breaks, go back to the last thing that you did before it broke and start looking there