Base to Trans Am tail light conversion
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Junior Member
Joined: Mar 2022
Posts: 5
Likes: 1
From: New Hampshire
Car: 1987 Firebird
Engine: 2.8l V6
Transmission: 700R4
Axle/Gears: 12 bolt 2.73
Base to Trans Am tail light conversion
Hi everyone. My 87 base Firebird came with a spare set of Trans Am lights. I would love to do the conversion while I have some free time in the next couple weeks but I do not really know where to start. Any advice would be appreciated.
From this
To these
From this
To these
Joined: Nov 2010
Posts: 5,892
Likes: 84
From: Mantua NJ
Car: 1 Owner 1986 TA with a WS6 package
Engine: 5.0 EFI
Transmission: THM700R4
Axle/Gears: 277 Posi Speedo
Re: Base to Trans Am tail light conversion
I wouldn't think you need anything special,just plug the backup bulbs and the three t/s,stop,running lights into the proper locations
Joined: Mar 2005
Posts: 615
Likes: 27
From: Austin TX
Car: 89 Formula
Engine: 383 SBC/HSR
Transmission: 700R4
Axle/Gears: 3.73
Re: Base to Trans Am tail light conversion
There's a write up on how to do it. Try using the search, and it should come up. A guy on here named Vader had all the info, which helped me to do mine.
Supreme Member




Joined: Feb 2005
Posts: 2,509
Likes: 201
From: Hawaii
Car: 89' Firebird / 87' Formula
Engine: 3.4 / 5.0
Transmission: 700-R4
Axle/Gears: 3.42 / 3.42
Re: Base to Trans Am tail light conversion
Supreme Member




Joined: Feb 2005
Posts: 2,509
Likes: 201
From: Hawaii
Car: 89' Firebird / 87' Formula
Engine: 3.4 / 5.0
Transmission: 700-R4
Axle/Gears: 3.42 / 3.42
Re: Base to Trans Am tail light conversion
Wiring for Firebird/Formula to Trans Am taillight conversion - Third Generation F-Body Message Boards
check this one out... i hope it helps
check this one out... i hope it helps
Joined: Mar 2005
Posts: 615
Likes: 27
From: Austin TX
Car: 89 Formula
Engine: 383 SBC/HSR
Transmission: 700R4
Axle/Gears: 3.73
Re: Base to Trans Am tail light conversion
Well, I found it. It was an old forum called Austin Third Gen. Guy who posted it, is on this site also - BigBabyLou
Here's the link to the page, with the instructions to have it function just like a Trans Am. I did it 8 years ago, still works fine.
http://www.austinthirdgen.org/index.php?pid=37
Here's the link to the page, with the instructions to have it function just like a Trans Am. I did it 8 years ago, still works fine.
http://www.austinthirdgen.org/index.php?pid=37
Supreme Member




Joined: Feb 2005
Posts: 2,509
Likes: 201
From: Hawaii
Car: 89' Firebird / 87' Formula
Engine: 3.4 / 5.0
Transmission: 700-R4
Axle/Gears: 3.42 / 3.42
Re: Base to Trans Am tail light conversion
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Supreme Member




Joined: Feb 2005
Posts: 2,509
Likes: 201
From: Hawaii
Car: 89' Firebird / 87' Formula
Engine: 3.4 / 5.0
Transmission: 700-R4
Axle/Gears: 3.42 / 3.42
Re: Base to Trans Am tail light conversion
Well, I found it. It was an old forum called Austin Third Gen. Guy who posted it, is on this site also - BigBabyLou
Here's the link to the page, with the instructions to have it function just like a Trans Am. I did it 8 years ago, still works fine.
http://www.austinthirdgen.org/index.php?pid=37
Here's the link to the page, with the instructions to have it function just like a Trans Am. I did it 8 years ago, still works fine.
http://www.austinthirdgen.org/index.php?pid=37
ahh he beat me top it lol
Joined: Mar 2005
Posts: 615
Likes: 27
From: Austin TX
Car: 89 Formula
Engine: 383 SBC/HSR
Transmission: 700R4
Axle/Gears: 3.73
Re: Base to Trans Am tail light conversion
Yep, I beat you to it. A lot of good tech articles there! 
List of tech articles - http://www.austinthirdgen.org/index.php?pid=2

List of tech articles - http://www.austinthirdgen.org/index.php?pid=2
Last edited by heat seeker; Mar 21, 2022 at 02:31 PM.
Supreme Member




Joined: Feb 2005
Posts: 2,509
Likes: 201
From: Hawaii
Car: 89' Firebird / 87' Formula
Engine: 3.4 / 5.0
Transmission: 700-R4
Axle/Gears: 3.42 / 3.42
Re: Base to Trans Am tail light conversion
yeah, really good stuff.!
EVENTUALLY i plan to do the T/A light thing...one day
EVENTUALLY i plan to do the T/A light thing...one day
Supreme Member




Joined: Feb 2005
Posts: 2,509
Likes: 201
From: Hawaii
Car: 89' Firebird / 87' Formula
Engine: 3.4 / 5.0
Transmission: 700-R4
Axle/Gears: 3.42 / 3.42
Re: Base to Trans Am tail light conversion
post [progress / results!
theres not eough good threads about this really
theres not eough good threads about this really
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