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Up for sale is a vintage external-assist power steering gearbox and control valve linkage assembly, featuring main casting numbers 5663858-11D and 566382 as pictured. This complete vintage assembly includes the main control housing, attached pitman arm, hydraulic lines, and original drag link steering linkage setup, making it ideal as a period-correct core for classic vehicle restorations or custom early Ford (Model T / Model A / 1934 Ford) hot rod power steering conversions. The unit shows age-appropriate surface rust, grease buildup, and wear from storage, and is being offered strictly as-is for rebuild or hard-to-find parts; please review all high-resolution photos closely to confirm dimensions, mounting, and compatibility for your specific application before buying.