Extra heavy-duty oil pump driveshaft can help you avoid expensive engine damage;Designed for increased capacity oil pumps or heavy viscosity lubricants;Shaft has larger diameter than the OEM unit;Made from premium grade ARP2000 chrome moly steel and heat-treated to 220,000 psi;CNC milled (not broached) hex; retaining washer is installed

• ARP 1547905 Heavy-Duty Oil Pump Driveshaft Kit For Select Ford 351C, 351-400M Applications

ARP 1547905 Heavy-Duty Oil Pump Driveshaft Kit For Select Ford 351C, 351-400M ApplicationsARP