Post some pictures of your truck.
Ya, I hate when people butcher up original parts because of their incompetence or laziness when it comes to doing a proper repair.
At least remove the part and store it for someone in the future to have a crack at fixing it.
I'm sure someone whose swapping rear ends will have the parts you need eventually.
Have you checked the restoration supply houses like Jim Carter, The filling Station, Classssic Chevrolet Truck, etc?
