; HomeHeavy Duty Truck PartsDifferentials & Differential PartsFront Rears (Tandem Front)Spicer/DanaN400Used 1987 SPICER N400 Front Rear (Tandem Front) Used 1987 SPICER N400 Front Rear (Tandem Front) Unfortunately this part is temporarily unavailable. View other Spicer/Dana N400 Front Rears (Tandem Front)