Dart no start

OK, if you don't think you are getting juice on the yellow, it's a VERY simple path. It goes through the bulkhead connector (and you have a 68--dash mount switch, right?) and right to the igntion switch. So try to check at the bulkhead connector, and pull the switch out of the dash so you can get to the back of the switch.

It either has to be the wire/ connection, bulkhead connector, the connector at the switch, or the ign switch itself went bad.

Some '68 diagrams:

http://www.mymopar.com/downloads/1968/68DartA.jpg

http://www.mymopar.com/downloads/1968/68DartB.jpg