2 or 3 spd. wiper motor ????

[Highbanked Hauler]

 My 68 has/had a 3 spd. wiper motor and switch in it. Can I swap a 2 spd.motor in its place or does it cause electrical problems ??

[70gtx440dana]

You should be able to swap over to a 2 speed motor....you will need to change the switch to a 2 speed as well.

Also check the wiper transmission compatibility......not sure....but the transmission may also need to be changed.

[Nacho-RT74]

electrically is just about get the motor and harness, and change the switch

mechanically, sorry, I know just about 3rd gens, where the main linkage and crank changes allong with a parking cam used to hide wipers down the hood for 2 speeds ( 3 speeds parking cam are built in )