No working tail lights...63 Dart

I'm afraid I have no knowledge to fix that. I'm not electrical savvy

Sure you do. Get your hands dirty. that connector in the kick panel and that harness only goes ONE place.......to the trunk

"What's in there........" things like power to the trunk light circuit "if used,"

tail lamps which also feeds the license plate light

left turn and brake

right turn and brake

the sender wire to the fuel tank.

Let's look at the diagram.......

Posted the link earlier............

http://www.mymopar.com/downloads/1963/63DartA.jpg

http://www.mymopar.com/downloads/1963/63DartB.jpg

Look at diagram "A" top left, there's an 8 pin connector there. This is the kick panel connector

Lt. Blue goes to the fuel tank sender

Dk. green goes to one turn signal and brake

Black IS THE TAIL LAMP. Follow from the splice on the top lamp and down the page, it also feeds the lic. plate lamp and the opposite tail lamp, and appears to also feed the trunk lamp "along the way."

So what could the matter be?

First thing I'd suspect would normally be tail lamp socket problems, but since the lic. light also is out, this might get "more physical."

So...

1....DOUBLE check at your kick panel connector. MAKE CERTAIN you are checking the correct wire IE the BLACK wire

2....Next, yank out the back seat. Inspect what you can see of the harness for any abrasions or cuts.

3...Get into the trunk, and get up in there and inspect what you can get to in the trunk, again looking for physical damage.

4...I left one thing out which actually should be 1 or 2. Inspect the kick panel connector for corrosion, and work it in / out which scrapes the terminals clean, and allows you to "feel" for tightness.