chaning a 2 speed wiper to 3 speed

[69 b body]

did anyone change a 2 speed wiper to a 3 speed and how did you wire the 3 speed switch thank you

[resq302]

I did.  You have to change more than just the motor though.  you have to change the pivot arm that is attached to the motor and the plastic cog that goes onto the wiper arm linkage which attaches to the wiper motor.  On top of that, you need a 3 speed wiper motor switch which should have all the wires already on the dash harness unless someone chopped them out.

[Nacho-RT74]

switch is a plug and play job... prongs disposition is the same... rest was already covered up

[resq302]

If I remember correctly, there was one additional wire that was alone in the harness that was used for a 3 speed vs the standard 2 spd.  Something like a black or a brown wire.