Pictured?

Power or manual

Rockauto.com shows one of each for a 70 Dart with front discs, sounds like your local source is trying to sell you a drum brake MC.

A-1 CARDONE Part # 101326M REMANUFACTURED w/ Reservoir Front Disc brakes; Rear Drum brakes; Manual brakes

A-1 CARDONE Part # 101326 REMANUFACTURED w/ Reservoir Front Disc brakes; Rear Drum brakes; Power brakes

Shows a larger reservoir on one end than the other.


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.