I would like to get an aluminum master cylinder for my 67 Dart. I would like to go to my local parts store to get it so if it should ever go bad I can take it back and swap it without having to order a special one from some out of state parts dealers. Plus the aftermarket ones are expensive. I went to get one for a 85 dodge diplomat because they had aluminum ones but the one they had was cast iron. Does anyone know of a factory replacement one that has the 1 1/32" bore.