Borgeson offers an integral power steering conversion for your 1955-1957 Chevy. The Borgeson conversion box is a re-manufactured GM Delphi 600 integral power steering gearbox. The Delphi 600 represents the latest generation of integral power steering gearbox technology with true modern power steering feel, feedback and a sporty 12.7:1 ratio. Borgeson has re-manufactured this box to bolt directly to the factory mounting location and to fit the stock pitman arm. Cars with factory power steering will require a drag link adapter. Box includes adapters to use either flare or O-ring hose connections. Steering column modifications or use of an aftermarket steering column required for installation.