Pic of the fender?
My 74 Valiant and Dart and Duster all have the same ones and use 2 holes
My other 73 Duster has the earlier signals and uses 2 holes and the attaching nut is underneath
Sorry I dont have a picture of the fender. If it helps the large hole is closest to the windshield then the 2 smaller identical holes are towards the front of the car. These seem to mount like a grommet and push into the fender and the screw is to hold the chrome cover in place.
