58-64 GM Power Steering Conversion Box

The 58-64 GM Power Steering Conversion Box by Borgeson is a direct-fit replacement steering gearbox engineered for classic Chevrolet vehicles from 1958 through 1964. This power steering conversion box transforms the driving experience of vintage Chevy cars by replacing mechanical steering systems with modern hydraulic-assist technology, reducing driver fatigue on longer cruises and simplifying parking maneuvers in tight spaces. Whether you're restoring a 1958-64 Bel Air, Impala, or Chevelle, this conversion box delivers the control and comfort expected from modern vehicles without compromising authenticity or requiring extensive frame modifications.

Built from iron construction with a black paint finish, the Borgeson steering box features a 14-to-1 ratio and utilizes the proven Delphi 600 Series hydraulic platform for reliable power assist. The 14:1 ratio balances precise steering feedback with manageable effort at low speeds, preventing the over-assisted, numb feel common in poorly integrated power steering conversions. At 25.3 pounds and measuring 12.3 x 7 x 14.3 inches, the compact design fits within original steering column locations, preserving the stock appearance while integrating modern power steering pump circuits. Iron construction ensures durability under continuous use, while the black finish resists corrosion and integrates seamlessly beneath classic Chevy dashboards.

Restoration enthusiasts, hot rod builders, and vintage car mechanics favor this conversion box for frame-off restorations and modernization projects targeting 1958-1964 Chevrolet passenger cars. Installation pairs with a belt-driven power steering pump mounted on the engine, typically integrated into existing engine bay space with minimal bracket fabrication. This steering box is compatible with factory Chevy steering columns and intermediate shafts, making it ideal for builders seeking a plug-and-play solution without custom welding or column shortening. The Delphi 600 Series platform ensures availability of seals and internal components through multiple aftermarket suppliers, supporting long-term ownership and maintenance.