Geeeeez dude raise that car an inch. Based on the rust marks you have already clipped the diff a few times and the body structure is dam near worn through (looks like it may even be punctured at the top of the pic). You are flirting with serious damage if you crack that diff housing open or cause much more structural wear. I am lowered almost 2 inches and although I have a few scraps underneath it is no place near as bad as that.
Not to mention that you will just keep destroying axles.
Nasty!