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

I installed cheap LEDS in tail/brake lights, they were no better than std bulbs. I didn't invest much time into looking for any. The interior was my priority for leds.
Superb rights for me were outrageously priced lol.
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.