Dash lights backwards-working suddenly...

Kendog 170 said

I don't know but check your grounds. There is one under your steering column that he may have removed that's on the steering column bracket. I've seen bad or no grounds make electrical go all wonky. I had a truck that did all kinds of **** until I found a broken battery to body ground wire.

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67Dart273 said

This certainly sounds like a grounding problem. The cluster is poorly grounded by the mounting bolts to the dash frame, and the PC board is grounded to that by it's mounting screws. Find a common ground on the PC board and install a pigtail, then bolt the pigtail to either the column support or the dash frame

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I know what you guys are saying, but I just thought it was weird that everything worked perfectly normal with the headlight switch shut off. Thats why my initial thought was something was reattached backwards with the switch. Would the dash gauges/ lights still work normal in the daytime with a grounding issue?

and thank you all i appreciate the help! Most everyone here has more experience with these older cars than I :)