Unbolted this from a frame cross member. Don't need to hold a spare under here anymore.
Surprisingly, I broke none of the bolts holding it on. They were so coated in rust that I had to really work to get the socket and wrench to fit. Also there is no rust at the top of this thing, wtf?
So I supported my drive shaft with a board and no more leaking atf on to the floor.
Leaf springs? I give up. I am buying/borrowing a sawzall and cutting the damn bolts off.