Replacement driver side 1 rear drum brake wheel cylinder for various 1948-03 Ford and Mercury models including F-Series Truck E-Series Van and numerous full size models. This direct-fit premium wheel cylinder is designed to meet or exceed original equipment in fit function performance and appearance. They are pressure tested for hassle-free performance and feature brass inserts and aluminum castings for leak-free long-lasting braking performance. Includes pistons cup seals and dust boots. Sold individually.Installs on the Front Left Hand (Driver) Side.Applications:Ford Cars:1948-52 F1 Pickup1953-54 F-100.