When does money outweigh sentimental value? 1968 notchback build thread

Leds are polarity sensitive. Best thing to do is bench test your backlighting with a 9v batt and 2 alligator end test leads. Hook ground to the gage housing and hot to pin on circuit board that feeds the lighting. If it doesnt light, just turn bulb 180° and drop back in the socket, or ditto with leads on the light strip if soldered to a bulb socket.