In my collection of Chevrolet Training Manuals, I have this manual, which I believe is for 1959 or 1960 based on the firewall and switch knob pictures. I just don't know how much difference there is in the unit itself from units produced in prior years or subsequent years. I am planning on cleaning the old grease out of my wiper/washer assembly this winter, since the wipers are sluggish. A friend gave me a motor assembly that he disassembled, and wasn't able to reassemble after he got it apart. I have a box of parts to play with before starting on my own wiper motor.
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