I am finally replacing the original 2-speed wiper motor on my 69 Road Runner with a refurbished 3-speed motor from "Passion 4 Mopars". I unbolted and removed the original and replaced it with the new 3-speed unit. My question is with regard to the positioning of the under-dash arms that attach to the wiper motor. Does anyone have a diagram or installation manual for this swap? I have the replacement 3-speed switch, but it is not installed yet. Tom