2 speed wiper wiring question | 1958-1965 Full size Feb 26, 20082 speed wiper wiring question. Thread starter GLM409; Start date Feb 23, 2008; GLM409 the 2 speed wiper washer motors in my 59 Chevy and 63 Corvette are identical, same 3 posts with one connector, plus a separate hookup for the washers. The wiring diagram on the web site and the assembly/service manuals are all the same and look like 1955 to 1959 Chevrolet & GMC Trucks - RainGear Wiper Systems The RainGear system will fit all 1955 to 1959 Chevrolet and GMC trucks with the following exception: Cross-mount master cylinders likely won’t fit with our RainGear system installed. The kit comes complete less assembly lube, arms and blades, escutcheons and model-specific knobs for the switch. All those stock pieces will fit on our system.