75 Duster Neutral Safety Switch... I need to replace it!

Here's another test for you

Unplug the NSS wiring from the switch. Take a wire from the center terminal and ground it. Does the car start easily? If it does, the switch or linkage adjustment is bad. If not and the problem pesists, it's something else. Probably should have done this before replacing the NSS switch and getting the fluid bath! :-D

Relay, bad wire connections, bad starter, ignition switch.