What happens if a driveshaft fails while driving?

My work wants me to drive a Ford Transit that was supposed to have been recalled in 2017 for 5 hours down a highway that is at a high altitude and has no guard rails to the nearest Ford dealership.

Apparently the issue with my vehicle is to do with a a rubber composite 'doughnut' that is between the end of the prop shaft and the rear differential which absorbs vibration and shock from the prop shaft.

If this component failed while I was driving what could happen?

Added (1). The suspect part is a flexible coupling or 'flex disc'

Gorokvookovekofok

If it failed, you "MAY" notice some vibration( or nothing at all). But if a driveshaft fails while driving you don't go anywhere anymore. Call a tow truck.

If the rear end of the driveshaft fails completely and disconnects from differential, it will simply drag along the ground until you come to a complete stop ( and you will stop as you no longer have power going to the drive wheels ).

The vehicle wouldn't move.

The vehicle wouldn't move.

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