Electrical Issues 1975 Dodge Dart Sport

67Dart273 said
Unfortunately, my 75 wiring docs are now GONE

That's sucks. I just saw the other threads - sorry to read that.

Bonkled_2900 said
I have a 1975 Dodge Dart Sport with a 5.2 L 318 V8, and am experiencing electrical issues. This morning, I started the car with no problems and I was watching the alternator gauge fluctuating going down and up. I turned the car off and noticed nothing works, the headlights, horn, gauges, brake lights, nothing. When i try to start the car it cranks, but no spark. The only electrical thing that seems to work is the starter and that’s it. Would appreciate any suggestions.

'75 has two fusible links. But if the key will cause the starter to engage, they are both intact.

Follow the line from the battery to the key switch. When the key is in 'start', a connection is made to the yellow wire which then connects back to the starter relay.
The 'alternator' gage actually indicates battery charging or disharging. So while starting it show a little discharging.
Headlights and dome lights are on seperate feeds that branch off from a splice. So its hard to come up with a scenario where both of those fail to work and the starter engages, other than maybe a chassis ground.