; HomeHeavy Duty Truck PartsDifferentials & Differential PartsFront Rears (Tandem Front)Meritor/RockwellRT20-145Used Meritor/Rockwell RT20-145 Front Rear (Tandem Front) Used Meritor/Rockwell RT20-145 Front Rear (Tandem Front) Unfortunately this part is temporarily unavailable. View other Meritor/Rockwell RT20-145 Front Rears (Tandem Front)