; HomeHeavy Duty Truck PartsDifferentials & Differential PartsRear Rears (Tandem Rear or Single)Meritor/RockwellRT 40Used 1998 Meritor/Rockwell RT 40 Rear Rear (Tandem Rear or Single) Used 1998 Meritor/Rockwell RT 40 Rear Rear (Tandem Rear or Single) Unfortunately this part is temporarily unavailable. View other Meritor/Rockwell RT 40 Rear Rears (Tandem Rear or Single)