Do you have a part number? Their website claims a 69 340 Dart should have a 9" rear drum, which we know is wrong, and it's $32.99.
RockAuto has the Wagner ones for $71.89. It's part number BD60123. It's the only rear 10" small bolt pattern drum that I've known of available new for decades.
If there's another source, it would be good to know.
