Replacing Instrument Cluster bulbs with LEDs - Illumination Detail Question - 67 Barracuda

soonercruiser said

And now, running into a problem with the 1157 SMD replacements for the dual function taillights and front turn signals.
LEDs won't work there. :eek:
I've got LEDs everywhere else, including the side markers.
First time I've run into this.
Will communicate with Superbrightleds.

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Have you checked the polarity? You might need to switch the leads around in the lamp socket.
I got LEDtronics 1157s ten years ago. They're fine. I plugged them in and they worked.
You might have issues with flashers needing resistance in the circuit to work properly. I didn't, but I left my hood mounted turn signal bulbs as incandescents so that may have been enough to make it work. There are special electronic flashers, but I don't have any experience with them.