Found my dads original 1971 duster!

dads71 said

Thanks! I’ll try to see. So eliminating the dash and IVR won’t have anything to do with that? Lights etc should still work? The rallye dash with all the gauges is out of the car. I take it in on wed to have it repaired and solid state system put in it

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As long as the 2 amp gauge wires are connected, having the dash out shouldn't matter. Per what I can tell from the wiring diagram I have. But if the turn signal switch is out, the tail lights and such might not work. Interior lights should though.

My bet is the fuse box is bad and you don't have power on the fuse for the lights. But just a guess, you need to check it.