headlight upgrade

1997 GMC SIERRA
113,000 MILES • 5.0L • V8 • 2WD • AUTOMATIC
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SIERRA GUYA
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Can I put 9006 LED lightbulbs with no other changes? It has original 9006 halogen bulbs now. I'm the original owner. Never changed any of the headlight bulbs, They are so old they're kinda dim.
Nov 1, 2021 at 8:54 PM
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KASEKENNY
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If you buy the 9006 headlight conversion kit bulbs. Basically, these have the proper resistors and ignitors in them that they should just plug in.

However, I would be sure to keep your original bulbs because I have seen many times that on these older vehicles where a lot of the other lights stop operating properly due to the LED being different then the halogen.

However, if you have a dim bulb then more than likely it is not the bulb. More than likely it is either the connector that has corrosion on it and it is causing the bulb to be dim, or the lens is cloudy.

Here is a guide that talks about this:

https://www.2carpros.com/articles/one-headlight-is-dim-or-dull

Also, here are two videos that will help with this further. The reason I say this is because if one of these are the issue then just changing to the LED may make it slightly brighter but not solve the issue.

https://youtu.be/PxA5wczsCVo

https://www.youtube.com/watch?v=Y_cYcwbB5qM

Let us know if you have other questions. Thanks
Nov 4, 2021 at 5:30 PM
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SIERRA GUYA
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Thanks for your help. I'll pull the headlight assembly out and take a look at the connections.
Nov 4, 2021 at 8:21 PM
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KASEKENNY
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Sounds great. Let us know what you find. Thanks
Nov 5, 2021 at 10:23 AM