Hi Challenger, I bought all new wiring from YearOne, though I went with the non rallye option. I am not sure if the new harnesses have the ability to use either 2 or 3 speed setup. I need to switch to a 3 speed wiper because I am adding a shaker setup. Did non rallye dash shaker cars use different harnesses?
Good question, I assumed you needed the rallye dash to get the 3 speed wiper, but maybe it was a separate option. I think most (if not all) of the shaker cars were R/T's which would have had the rallye dash.
