; HomeHeavy Duty Truck PartsDifferentials & Differential PartsFront Rears (Tandem Front)Meritor/RockwellRT40-145Used 2007 MERITOR/ROCKWELL RT40-145 Front Rear (Tandem Front) Used 2007 MERITOR/ROCKWELL RT40-145 Front Rear (Tandem Front) Unfortunately this part is temporarily unavailable. View other Meritor/Rockwell RT40-145 Front Rears (Tandem Front)