; HomeHeavy Duty Truck PartsDifferentials & Differential PartsFront Rears (Tandem Front)EatonDS404Used 2007 EATON DS404 Front Rear (Tandem Front) Used 2007 EATON DS404 Front Rear (Tandem Front) Unfortunately this part is temporarily unavailable. View other Eaton DS404 Front Rears (Tandem Front)