I have two Aluminum BUICK Brake Drums -- Used, Loaded, complete with backing plates, and I imagine all the internals .... I don't have a way to separate them... They are a full finned -- top to bottom -- drum with 72 teeth ( I counted twice !!) They are, of course, very heavy... Call for details -- Craig -- 516 - 485 - 1935.....
Lou Gilbert and Larry (Southside Machine) were at my house many years ago when they were getting ready to produce these, great guys, looked to be quality parts.