One of my bosses was at an SF Camp in Vietnam. He said that the local VC had captured one of these and were using it to shell the camp. Every time the VC would fire off a round, the camp reaction force would go out looking for the gun. They finally took out some long probes and found the firing position. They dug it up, and it was a Sheridan. He said the VC were putting marks inside the turret to show azimuth and elevation when they fired. He said they would have eventually hit the camp. They buried a Sheridan. Amazing.
they were not what you want to be in when hitting a mine.
none of the hot rods or funny cars were. we had a layer of 50 cal boxes on the floor or our ACAV, to shoot as well as to protect. poor driver just got a couple of sandbags.