How to identify which Wiper Motor (2 speed or 3 speed) Should be on 75 Duster

Look for witness holes, for place where the tank may have been mounted. The cruise control kinda throws everthings mounting place off. My '72 Dart ( I know that 3 yrs changed a lot under the hood) has the tank on the drivers side in the normal place just above the shock stud. My ign module is mounted just in front of it and the starter relay is in the normal place . Your relay is up on the firewall, ign module is in an odd place ( to me). Wondering if everrhing has been moved around for some reason. Also, has the wiring been tampered with. I am thinking the car should have had electric washers, but they are correct I think that under the dash, that arm that attaches to the motor is different between the 2 and 3 speed. Is the wiring and ballast resister for the 2 speed motor look orginal? Are there any holes in the floor above the dimmer switch for where the foot pump would have been?

This car was rode hard and put away wet in the 80's and early 90's. When my wife was a teenager and the engine/transmission was pulled for a rebuild. The firewall was blasted black. (I know most of us think of this as a deadly sin, but my Father-in-law who built this car for his then teenage daughter is a paint/body man by trade, and one of his Cuda's was even featured in and on the cover of Mopar Muscle *11/1998 iirc*. He said that before he put the engine back in, due to not wanting to get into an engine bay restoration it looked better flat black than F8 green as the exterior was painted purple, and he's probably right). All of the electronics in the car we left in the same locations as when he got the car for her, but the way the wiring is ran, it seems right. I've patched in lots of repair splices though, and I *used* to grab whatever color wire I had a spool of (I don't do that anymore though).