Muffler bracket/exhaust bracket

I am looking for the sheet metal bracket that is welded to the underside of the car and is used to attach the exhaust hanger. The bracket is just forward of the axle. I have the drivers side which was original to all cars. but looking for the passengers side for dual exhaust cars. I know I have seen this at a vendor, but cannot find it. Anyone help out. Also willing to buy one off a 2x exhaust car, but not likely to find one..am I?? Specifically for a 1969 Dart, but I think it would be common to all A bodies.