I have a 70 Challenger that I pretty much bought in parts. The dash was in the car as was the wiper motor and switch and all the wiring appeared to be hooked up. The fender tag says it is supposed to have 3 spd wipers. When I took it all apart to clean and paint the dash frame I found that the wiper switch only clicks to the right twice but the motor looks like a 3 speed motor. Is the dash harness the same for 2 and 3 speed motors regardless which motor you have? I am thinking someone may have swapped out the switch panel.