03 blazer Instrument cluster
 

I'm looking at possibly replacing the whole cluster. First off i have a bulb that's out and was thinking or replacong them with blue LEDs... If this is possible what size bulbs do i need and where can i find these... Also i would like to replace all the guages with white faces.. Once again after an exhausting search I've found nothing to fit my blazer... Any ideas would be helpful...

I think the s10 extreme models had the white backing, can't remember exactly. And if you do a search on here for the cluster exchange, there's a write up. Can't remember exactly by whom, but I know of at least 2 different people who I'd this. Good luck, post pics when your done if you don't mind, wouldn't mind seeing the blue behind the white... seen many black on blue.

Check out this build thread. Tajohns34 gets into detail with different Blue LEDs, and a color changing gauge face.

https://blazerforum.com/forum/builds...r-build-79095/

Otherwise, you can order generic white faced gauge plates like the following:

https://www.bonanza.com/listings/98-...yABEgLFg_D_BwE

Ebay might have cheaper, and different styled ones.

Update
 

I just replaced the bulbs with some blue leds... They don't work at all... I just got in another set and haven't installed them yet... I tested the original bulbs that work but when I put the meter to the led's they don't register... I was wondering if there is a way to test them to see if the work...

You might have to flip the LEDs around to get them to work.
Also, when you put them in your cluster, you might have to only twist them 75 percent of the way. Make sure the metal tabs on the twist base are touching the metal strips on the cluster.

I have tried flipping them and still nothing... There are 6 that go in the cluster so the odds of them all being backwards are small... But nonetheless I turned 3 of them 180... I'd be done sooner but my battery died and since i can't legally drive it I haven't been able to get it charged... I'm about to take it to autozone to charge it... Upon further inspection it looks like the contacts go too far... I adjusted 2 of them and will check when I jump the blazer...

Yay...
 

I got them to work... Well one of them... I didn't turn it as far and it works... https://cimg4.ibsrv.net/gimg/blazerf...ad007370a7.jpg

Saweet!

I like the blue, but the red matched better in mine.
https://cimg7.ibsrv.net/gimg/blazerf...a79dc3ac53.jpg

What brand red LEDs did you use? I tried to do the same in my old 1998 Mustang, but none of the four different brands of LED bulbs I used were ever as bright as in your picture.