Third brake light installation
Thread Starter
Safety Car
Joined: Oct 2007
Posts: 4,426
Likes: 229
From: Pennsylvania
Third brake light installation
How difficult would it be to add the third brake light option to an 84 or 85 Vette? If one was purchased used, is there a logic sensor that needs to be bought also? Would I have to remove the whole wiring set up from the donor car?
Race Director
Joined: Aug 2000
Posts: 11,470
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i'm doing something opposite. i have a 90 coupe, and i'll be removing mine in favor of the convertible's bumper mounted style. i'm just planning on tapping into rear wiring harness.
Thread Starter
Safety Car
Joined: Oct 2007
Posts: 4,426
Likes: 229
From: Pennsylvania
I've seen a few that were done that way but the brake light blinks with the turn signal. I guess I'd have to find the brake light wire only if there is such a thing. That was my question about the logic sensor that eliminates the blinking problem.
Race Director
Joined: Aug 2000
Posts: 11,470
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now, i'll probably run the existing wiring down to the rear bumper. (sorry for getting this OT)
just thought of another point - does the coupe and convertible share the same harness? if so, the coupe's existing harness may have a connector for the bumper mounted 3rd brake light. does anyone know?
Last edited by Joe C; Feb 18, 2010 at 03:20 PM.
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Advanced
Joined: Sep 2009
Posts: 80
Likes: 2
From: Axtell Texas
I have a 85 with a 95 rear bumper.I wired mine in directly to the brake light switch by the brake pedal. It was easy, there are 2 wires at the switch, 1 is hot at all time, the other gets voltage when the pedal is pressed which is the one to tie into.
Safety Car
Joined: Nov 2008
Posts: 4,328
Likes: 15
From: Jacksonville FL
A lot harder but I would definitely do a separate circuit and wire to the third brake light. That third light has saved a many azz end of a car in front of me with a wiring problem. I believe that they come from the factory on a separate circuit for that reason.
I just got a third light in a deal and thats definitely how I am doing mine.
I just got a third light in a deal and thats definitely how I am doing mine.
