Is a 3 speed wiper transmission teh same as a 2 speed?

You could get a wiper motor off a Diplomat or something. Bolts to the firewall the same, still a 2 speed wiper, but the motor is laid over like the 3 speed one. I think (but am not certain) that the arm even bolts on.

I started down the road a while ago and didn't finish the project, but I think there are others that have.