The RainGear 2-Speed with Delay Wiper System is a lever & link wiper system that replaces the original cable and spool system. This system has both high & low speeds and an intermittent delay. This system comes complete less assembly lube, arms & blades, escutcheons & knobs for the switch. All of those stock pieces will fit on this system. All of those stock pieces will fit on this system. Includes a five piece metal bridge assembly with adjustments that is designed to fit the 1957. The RainGear unit cannot be controlled by any GM column mounted wiper switches, the included switch must be used. Wiring diagrams and installation instructions are included. An optional Washer Kit is also available to complete your installation. Made in the USA.