; HomeHeavy Duty Truck PartsDifferentials & Differential PartsAxle Housings (Rear)Meritor/RockwellRR20-145Used 2002 ROCKWELL RR-20-145 Axle Housing (Rear) Used 2002 ROCKWELL RR-20-145 Axle Housing (Rear) Unfortunately this part is temporarily unavailable. View other Meritor/Rockwell RR20-145 Axle Housings (Rear)