; HomeHeavy Duty Truck PartsDifferentials & Differential PartsAxles, Complete RearsMeritor/Rockwell20-145Used 1985 ROCKWELL 20-145 Axle, Complete Rear Used 1985 ROCKWELL 20-145 Axle, Complete Rear Unfortunately this part is temporarily unavailable. View other Meritor/Rockwell 20-145 Axles, Complete Rears