Crank end play, destroyed converter, 408 nightmare

I've always wondered how that is even possible?...…..
Well, one way is to actually have the converter set all the way into the pump and not secure it so it can't move forward on you as you're muscling it around to install. At start up the converter can shear those little lugs clean off a stock pump gerotor. (I think it cost like 27 bucks for a new one back then)
I'm thinking stock pumps may just be pressed, sintered, sized, and Blanchard ground powder metal. No match for a steel converter pump drive tube.