Upgrade your 1937-52 Mopar DPCD 6 Cyl or 51-52 Chrysler '8' with this authentic differential side gear. Manufactured in the United States, the part ensures compatibility and optimum performance for your classic vehicle. With an OEM part number of 663477, this component is designed to meet the original specifications of your car, maintaining the integrity and reliability of your automotive heritage. This genuine Mopar brand part is not a performance part, but a crucial replacement to ensure the smooth operation of your vehicle's differential. Keep your classic car running smoothly with this durable and well-crafted side gear, specifically tailored for seamless integration with your vehicle's system.