Electrical Gremlin.....weird, man.
What electrical modifications have you done?
What have you done to the car lately?
Mymopar.com has free factory service manuals and electrical schematics.
Classiccarwiring.com has colored, laminated wiring schematics, best 20.00 you'll spend.
Instrument panel is fed through the head light switch and a fuse in the fuse block
I would look at your fuses, then turn signal switch and related connectors.
If two fuses blew I would suspect that there are damaged wiring in your harnesses.
As for the things that are working most is not fed by the fuses in question.
NOW I am basing all this off of a 67 Dart wiring diagram, much will be the same but some will be different. Like the backup light cir might come form another source as the switching for it comes from the transmission vs the steering column or console as in 67
As for fuses.
Pull them out and check with a multimeter.
Most likely if it looks good but is blown it will come apart as you remove it.
Also some fuses are not powered on one side all the time. So e only have power when as example a switch is turned on.
I'm attaching this photo not for you to diagnose your issue just to show you what the classic car wiring product looks like
What electrical modifications have you done?
What have you done to the car lately?
Mymopar.com has free factory service manuals and electrical schematics.
Classiccarwiring.com has colored, laminated wiring schematics, best 20.00 you'll spend.
Instrument panel is fed through the head light switch and a fuse in the fuse block
Blinkers, horn, tail, brake, license plate light come through the turn signal switch and a second fuse.
I would look at your fuses, then turn signal switch and related connectors.
If two fuses blew I would suspect that there are damaged wiring in your harnesses.
As for the things that are working most is not fed by the fuses in question.
NOW I am basing all this off of a 67 Dart wiring diagram, much will be the same but some will be different. Like the backup light cir might come form another source as the switching for it comes from the transmission vs the steering column or console as in 67
As for fuses.
Pull them out and check with a multimeter.
Most likely if it looks good but is blown it will come apart as you remove it.
Also some fuses are not powered on one side all the time. So e only have power when as example a switch is turned on.
I'm attaching this photo not for you to diagnose your issue just to show you what the classic car wiring product looks like
