R-Bo; looks like the stud broke off the shock mount. Should be a threaded end sticking out beyond the shock mount about 3/4" or thereabouts so that the shock can be secured with a large flat washer, a lock washer and nut. You could probably weld a piece of threaded rod onto the end there or get a bolt and cut the head off and weld it on.

That other doo-hickey makes no sense to me at all. I'd grind that puppy off.