Any way to repair cracks in factory GT tail lights? (Page 1/1)
phils88GT NOV 01, 10:47 AM
I just traded my 04 Mustang for an 88 Fiero GT 5-speed. It has the factory tail lights on it, which are delaminating badly. Also, the passenger driver side lens has a crack about 3 inches long in it.

Is there any way to fix these cracks to make them less visible? I cannot afford the Goodyear tail light lenses. Also trying to figure out a way to fix the delaminating problem as well.

Any suggestions?

Thanks!
Phil
theogre NOV 01, 01:45 PM
not really.

UV light etc makes the plastic brittle & easy crack after 20+ years. GT Tail seems to have this worse but Notchies tail & more can have same problem.
Example: I had Front side marker that faded to clear then finally broke into pieces.

You might very carefully solvent weld the crack closed but easily break again anywhere even right next to current spot.
Thermal or sonic welding on clear plastic make worse problems & look like crap too.

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Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)


The Ogre's Fiero Cave

[This message has been edited by theogre (edited 11-01-2023).]

phils88GT NOV 01, 02:46 PM
Are the Fiero GT tail lights made of Acrylic plastic?
olejoedad NOV 01, 02:52 PM
I'm pretty sure they are polycarbonate.
phils88GT NOV 01, 02:58 PM
Ok. I have seen videos on youtube where people make silicone molds of the original parts to make acrylic replicas of the original lenses... I wonder how long those replicas last?
qwikgta NOV 01, 04:57 PM
nope, put an add in the mall to buy a set, or check the junkyards for a Fiero. Once and a while you get lucky.

Rob
John W. Tilford NOV 01, 05:06 PM
At one point I saw on the Forum a seller for replacement rear "lenses" for, in my case, the 1988 GT. I'll Google now and see if I can find. Feel free to search in the Forum.

As I recall, the replacements were NOT cheap.
theogre NOV 01, 05:11 PM
Take fixture out. Look @ "side" where the cover wraps/clips to the rest.
Somewhere should be GM Part # & near that should be type of plastic in letters on most plastic parts. (Most part have Type "Code" way before fake "recycle" code now "printed" on everything plastic.)
Think ABS for this.
Many others are PP = Polypropylene

Making ones... Often they don't last.
Worse, DIY & most or all aftermarket replacement are Illegal for many reasons.

Example: Most don't have DOT marks & if cops or inspectors look... can get a Ticket because any cover over taillights are illegal in many places & Inspectors can Fail you for same reason.

What DOT marks? see https://web.archive.org/web...~fierocave/lamps.htm @ bottom.
"current" list http://www.fiero.nl/forum/Forum2/HTML/146377.html
John W. Tilford NOV 01, 05:17 PM
At one point I saw on the Forum a seller for replacement rear "lenses" for, in my case, the 1988 GT. I'll Google now and see if I can find. Feel free to search in the Forum.

As I recall, the replacements were NOT cheap.

https://www.fiero.nl/forum/.../HTML/098250-26.html

And from a few years ago:
"Yes they will be available for a couple of years. email keith.goodyear@bellyacrestudios.com with full name, shipping address and cell phone number. Currently there is about a 30 day wait."

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John W. Tilford

Vintage-Nut NOV 02, 09:36 AM
FYI - PFF member 'gtoformula' offers a restoration service:

GT fastback tail lamp restoration service by gtoformula
https://www.fiero.nl/forum/Forum4/HTML/077568.html

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Original Owner of a Silver '88 GT
Under 'Production Refurbishment' @ 136k Miles