67Dart273 said

What is the "equivalent lamp" number on the LED? It should have TWO "hot" contacts on the bottom, and no connection to the shell. Are you sure you have the headlight switch turned "some to the right" to shut off the dome?

I don't know what a 76 Duster uses I have no manual for that. The "older" cars used a 1004 lamp Looks like this

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