The DFC brake wheel cylinder for 1939–1948 Ford F1 rear-right applications is a replacement wheel cylinder that restores hydraulic actuation at the wheel for the truck's drum brakes. It fits the specified years and side, intended for use when servicing rear wheel-end components to replace worn or leaking cylinders and help bring braking performance back toward original condition.
DFC 39-48 Ford F1 Rear-R Brake Wheel Cylinder