68 Barracuda dash panel help

Dad n I changed bulbs in his 67 cuda to LED while his inst bezel was out. Some worked, some didnt. Not impressed. When the car gets touched again, I think bulbs will be put back where "warning" bulbs go...oil, brake, high beam etc. LEDS only for illumination on the inst faces. Then I will chk for proper operation on LEDs and bulbs.

I've change almost all of our vehicles over to LEDs. I've had very good luck. They all work and have worked without problems for years. I made the change to brighten up the instrument clusters. After so many years, the florescent paint on these old gauges fade and no longer reflect the light like they used to. If I recall correctly, the LEDs have to be put in with the proper polarity, so I sometimes had to remove some of the bulbs and turn them 180' to make them work. I also found that not all of the florescent bulbs were of the same intensity, so I searched eBay for the ones with the brightest rating I could find. One of the other advertized benefits is that they are supposed to outlast conventional bulbs. I don't know why others have had bad luck with them. I haven't. The only issue that I really had was when I tried using some of the colored LEDs. - They didn't seem to illuminate near as well.