I'm helping a friend, he has a 65 Barracuda. he needs a frt brake drum. its a 9" drum. the casting # on it is L-36998-R. its a finned drum. 5 on 4" bolt pattern. its not a stock drum for that car. the rearend is out of a 73 Dart Sport. can anyone help identify that drum so we can get a replacement.

thanks in advance.