ARP's Oil Pump Driveshafts are designed as an extra heavy-duty shaft that will provide you with the necessary reliability and cure to an all-too common problem of oil driveshaft failure. These driveshafts are made from heat-treated, premium grade aerospace chrome moly steel and with a larger diameter than OEM. ARP's oil pump driveshafts handle the added torque requirements of increased capacity oil pumps or heavy viscosity lubricants. Available for Chevy and Ford applications. Note: Make sure to always check shaft to block and pump to distributor clearances.