I managed to blow the front prop on an XR4x4 on the A64 coming back from sunny Scarborugh - horrible vibration and before I had time to slow it exploded ripping the doff out of the sump (sump was in about 4 bits ), snapped the gearbox case pretty much in half aswell and then the prop dug into the road and ripped under the car and squahed the downpipe on that side of the engine

A right fine mess it was