Re: Wiper switch and knob without washer
Single speed wipers without a washer were standard equipment in 64 & 65. Two speed wipers with a washer were optional in those years and became standard for 66.
I can't say for sure, but I think the single speed / no washer knob (which doesn't have a hole in it) would fit onto the 2-speed switch if you cut off the washer button.
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