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HOW TO: LS1--> LT1 Tailight wiring (with pics)

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Old 07-01-2007, 09:29 PM
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Default HOW TO: LS1--> LT1 Tailight wiring (with pics)

So i know there have been lots of questions of how to wire it so your LT1's light up the way they should. So i took some pics to show you how i did it. I went to autozone and bought two turn and stop signal sockets they are like 14 bucks each.


i then cut off the socket that was on there that has the missing middle wire and wired this in with a jumper from the middle wire to the brown middle wire from the socket next to it.

here is a pic with the left light fixed and the right light not. shows the difference in the look and how much better it looks when you fix it



yup its that easy.

Last edited by IB Chandak; 05-29-2013 at 07:11 PM.
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Domrod1579 (07-18-2020)
Old 07-01-2007, 09:41 PM
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Very nice!
Old 07-01-2007, 09:52 PM
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nice work. Cleaner install then mine. Get a mod to sticky this!!!
Old 07-01-2007, 09:59 PM
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once its solderd and taped it looks factory.
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Old 07-01-2007, 10:33 PM
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Originally Posted by xBROKEx
once its solderd and taped it looks factory.
Solder & Teflon heat shrink are your friend. You can also do the t-taps, but I am not a fan of those by any means.
Old 07-01-2007, 10:34 PM
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mine light up all the way with the headlights on.
Old 07-01-2007, 10:34 PM
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nice job broke!
Old 07-01-2007, 10:40 PM
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Originally Posted by Revelation Z28
mine light up all the way with the headlights on.

uhh cause yours is an LT1, you have the old wiring harness
Old 07-01-2007, 10:41 PM
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also remember to use a double filament bulb so that it still functions as a blinker.
Old 07-01-2007, 10:45 PM
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Originally Posted by xBROKEx
uhh cause yours is an LT1, you have the old wiring harness
oh this is for you guys who convert to our taillights.
Old 07-01-2007, 10:53 PM
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nice write up
Old 07-01-2007, 10:57 PM
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Originally Posted by Revelation Z28
oh this is for you guys who convert to our taillights.

:rofl:
Old 07-01-2007, 11:31 PM
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ive been looking for a thread like this but never got around to searching very good it should be a sticky
Old 07-02-2007, 12:47 AM
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Nice write up, and it does look factory!

I did mine a little easier. I just bought 1 GM socket and took one wire out if it for each tail. To get the wire out all i did was take the inside brown part of the socket out. It comes out by simply pushing the two locks on the side in and pulling it out. When you take it out you see the 3 wires on the bottom. All i did was pull one of them wires out and installed it on the blinker socket thats on the car. So its like a factory connection still.

With the wire installed into the stock socket, i just took the other end of it and put it in a scotch lock which was tapped into the middle wire (low filament) on the main tail light socket.

Its an easy way of doing it, and still somewhat clean. Heres a pic of how its set up.

Old 07-02-2007, 03:17 AM
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Originally Posted by Jakson
Nice write up, and it does look factory!

I did mine a little easier. I just bought 1 GM socket and took one wire out if it for each tail. To get the wire out all i did was take the inside brown part of the socket out. It comes out by simply pushing the two locks on the side in and pulling it out. When you take it out you see the 3 wires on the bottom. All i did was pull one of them wires out and installed it on the blinker socket thats on the car. So its like a factory connection still.

With the wire installed into the stock socket, i just took the other end of it and put it in a scotch lock which was tapped into the middle wire (low filament) on the main tail light socket.

Its an easy way of doing it, and still somewhat clean. Heres a pic of how its set up.

yeah i thought about that bout half way through soldering them, i figured oh well to late
Old 07-02-2007, 03:41 AM
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Broke, you wouldnt happen to be able to post up a full rear end shot with the lights on/off and trunk closed, would ya?
Old 07-02-2007, 03:47 AM
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Originally Posted by nifty97z
Broke, you wouldnt happen to be able to post up a full rear end shot with the lights on/off and trunk closed, would ya?
sure, day or night shot?
Old 07-02-2007, 03:53 AM
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Preferably day shots but night shots would be too

And great thread too I second the vote to have this thread stickied!
Old 07-02-2007, 04:01 AM
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lemme go take a night shot right now, i have a day shot with the lights off

Old 07-02-2007, 04:05 AM
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^^^ I love how the trunk line flows through the LT tails


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