Can anyone tell me, or anyone know if the rear bumper supports, brackets that connet the rear bumper to the bed, are they used on anything other than Brats? I have an 86 Brat, found a rear bumber for it, but one bracket is rusted up badly, do these brackets get used elsewhere, and are they interchangeable from one side to the other?

I believe that any Gen 2 Subaru (82 - 86?) will work, you might want to look around some of the wrecking yards and find some old wagons. Most of those early wagons and Brats were roughly the same. I hope this helps