I have no idea what these fit. Most of my googling leads me to Studebaker information but they dont look quite like the ones that fit them. I saw references to SteelTech making brackets for Ford 9", Chevy 12 bolts, and AMC Jeeps. The company doesn't seem to be around any more. I posted them on the Studebaker forum and got a little bit of info but nobody ended up wanting them and the thread got deleted. If anyone thinks they can use them you can have them for the cost of shipping (or pickup in Tampa FL). They'll fit in a medium flat rate box. They're 3/8" thick and look to be kind of crudely cut. I can get more accurate measurements than the pictures if necessary. If you don't want them and can identify what they came off of that would be useful too.