W72

iTrader: (9)

I know it's wierd, but I'd like to install a nice set of 85-90 T/A tail lights in my '92 T/A. What wiring changes need to be done? You know being that it's 2 amber lights now becoming 4 red.

I tried a search but really got nothing.

thanks

TIMMYS89GTA

iTrader: (28)

I did that swap before,biggest thing was swapping the t/l harness between 85-90 into the 91-92. The harness plug in for 91-92 firebirds is near the t/l's under the plastic panels and the plug for the 85-90 cars is located behind the driverside plastic,under the left rear speaker.I didn't have the 91-92 harn. so I had to do some wiring of my own since the model years have different plug ins not to mention the locations.
Anyway,I think all you need to do is run a wire from the brake switch(blue wire) to the t/s switch (white wire).
Hope that helps.

W72

iTrader: (9)

I started dickin' around with it today and I have 3, 85-90 harness(s),so I'll hack one of them up. I see what you mean by the brake light feed being a blue wire on the 91-92. I'm going to T-tap the 85-90 harness pre connector on the 92 T/L harness. That appears the best way to keep the original harness intact. It's a convertible so it has a different connector location to the main body harness up over the left wheelhouse.I did get the turn signals to blink the middle two,albeit fast blinking, but I bet the OEM flasher is a light duty flasher since it only uses one bulb per side.....I hope that's it anyway...

I'll post back

BigBadLou

iTrader: (3)

Try this tech article. It describes exactly what to do under the steering column to get the integrated brake lights and turn signals.

Lou

P.S.: Btw, once you have all-red tail lights, why not put a Sequential Turn Signal unit on them? It would look awesome on that convertible.

W72

iTrader: (9)

Lou my friend,you're reading my mind. That's half the reason I'm doing the swap.
Problem though....You mentioned a link and there's no link in the post?


I am having trouble with the brake light wire backfeeding the harness and stalling out the turn signals. But this was just some goofing around I did at the rear section of the harness. It looks like the turnsignal switch is different from the two versions of years...acording to the service manuals.

rich

BigBadLou

iTrader: (3)

Yeah, that comes with age, my man.

http://www.austinthirdgen.org/index.php?pid=37


Yeah, you can't just connect the wires, you need to run the brake wire THROUGH the turn signal switch. The tech article/link above shows how.

Lou

W72

iTrader: (9)

Lou, Is there a chance you have that in a .pdf that you can attach here?

Thanks,Rich

EDIT;

Nevermind I converted it to Word and printed it off.

thanks

W72

iTrader: (9)

Thanks Lou, swap is done and it came out perfect....now what to do with these perfect 91-92 T/A tailights?? toss 'em?

Yeah right!!!!!!

Stephen

iTrader: (12)

Lou didn't mention that there aren't any STS units for sale, but I suppose I could be persuaded to trade you a STS unit for your old tail lights.....