; HomeHeavy Duty Truck PartsDifferentials & Differential PartsRear Rears (Tandem Rear or Single)Meritor/RockwellOtherUsed ROCKWELL QR-100 Rear Rear (Tandem Rear or Single) Used ROCKWELL QR-100 Rear Rear (Tandem Rear or Single) Unfortunately this part is temporarily unavailable. View other Meritor/Rockwell Other Rear Rears (Tandem Rear or Single)