Thanks Barry and ebodyseast
I don't know if this will help?but those were out of my 70 Challenger 340 auto car.I didn't think they were original,cause the car did a lot of time at Englishtown dragway and at some point in it's life it was flipped on it's roof.Now you got me thinking that they were originals to that car.The car also had the large drum brakes frt. and rear.