; HomeHeavy Duty Truck PartsDifferentials & Differential PartsRear Rears (Tandem Rear or Single)Spicer/DanaRSP40Used 2014 Spicer/Dana RSP40 Rear Rear (Tandem Rear or Single) Used 2014 Spicer/Dana RSP40 Rear Rear (Tandem Rear or Single) Unfortunately this part is temporarily unavailable. View other Spicer/Dana RSP40 Rear Rears (Tandem Rear or Single)