; HomeHeavy Duty Truck PartsDifferentials & Differential PartsAxle Housings (Rear)EatonRSP40Used 2013 Eaton RSP40 Axle Housing (Rear) Used 2013 Eaton RSP40 Axle Housing (Rear) Unfortunately this part is temporarily unavailable. View other Eaton RSP40 Axle Housings (Rear)