This is a set of genuine OEM brake shoe hold down springs for 1966 Ford F Series Trucks. The springs are made of steel and come with the OE/OEM part number C6TZ-2068-D. They are in vintage condition and have no manufacturer warranty. This set includes 4 springs and is compatible with left and right placement on the vehicle. Please note that this is not a universal fitment item and is only suitable for Ford F Series Trucks. Thank you for considering this item for your brake drum needs.