What do you want to bet that car has a coilover suspension?
I don't think I have ever heard of a cracked mopar shock tower. Has anyone else?
Maybe on a race car with solid mounted shocks with real high rates, but not likely on a street car with rubber.
Not to mention the shocks have very little damping in compression (which is where the largest shocks would come from).
I'd bet you have a rust issue.