Torsion bar Warning

Sorry, I don't get how bigger bars could cause the socket to bust like that. The bar is carrying the same weight, right. Aside from a firmer ride, whats different?
inquiring minds want to know

Imagine you have two springs, one is stiffer than the other. If you compress them the same distance, the stiffer one will be pushing back with more force than the softer one.

Now imagine two Mopars sitting at the same ride height but with different-size torsion bars. If they both go over the same size bump, the car with the stiffer bars will put more strain on the crossmember mount than the one with the soft bars. This is why new stiff bars with 'modern' spring rates put more strain on the crossmember than they might have originally been designed for.