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10-02-2010, 02:24 AM
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#1 |
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Registered User
Join Date: May 2008
Location: greenville Alabama
Posts: 63
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Third Brake Light
Hey all - I'm trying to add a third brake light (Mounted on top of the cab) on my 1983 C10. Any suggestions as to how the third light (has two wires) should be wired?
Thanks, Tony
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 Country; LIKE A ROCKAll that I am, I owe 62SWB-STEP 83SWB 86LWB |
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10-02-2010, 09:04 AM
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#2 |
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Registered User
 
Join Date: Jul 2010
Location: memphis
Posts: 2,537
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Re: Third Brake Light
astro or tahoe 3rd brake light looks like a good choice for a sway to me
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10-02-2010, 11:22 AM
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#3 |
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In the Forgotten far North.
Join Date: Jul 2007
Location: Anchorage, Alaska
Posts: 2,627
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Re: Third Brake Light
Run the powered wire directly to to your brake light switch. and ground out the other lead. This way it won't flash with your turn signal the way most aftermarket installs do that I've seen.
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1987 R3500 CREW CAB DUALLY (BIG RED)Acquired 06/12/2015 1990 chevy suburban V2500 5.7L My cluster Mods-Nov 2007 overhead console Stereo install Round 2 Aug 2009 Heated/turn signal mirror upgrade |
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10-02-2010, 02:52 PM
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#4 |
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Registered User
Join Date: Dec 2009
Location: Humble, TX
Posts: 184
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Re: Third Brake Light
The first thing you want to check is your taillights. If yours doesn't have separate brake/turn lamps, then you will have to use a logic circuit. I want to say the 83 does have separate lamps though, so you should be ok. Here is a wiring diagram from another thread for your year model:
http://www.73-87chevytrucks.com/tech...s_rr_light.jpg I installed an aftermarket third brake light license frame on my 1980 C10 with 3 wires and it was a PITA, but mine does not have separate lamps so I had to use a logic circuit on mine. Here is a diagram of how I created one with two relays. I connected mine to where the third brake light flashes with the turn signals, but like I said if yours has separate bulbs you should be ok. Just figure out which wire is the brake light and connect the power of the third brake light to that and ground the other wire. I hope this helps. |
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10-02-2010, 11:42 PM
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#5 | |
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OutOfMyMind & I'llNeverKnowWhy
Join Date: Apr 2004
Location: Another world, some other time
Posts: 672
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Re: Third Brake Light
Quote:
http://67-72chevytrucks.com/vboard/s...d.php?t=361457
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-Justin-Out of my mind and I'll never know why 1976 Chevrolet Silverado C10 350 4bbl / TH350 Big10 longbed 1986 Pontiac Firebird T-Top 5.0L TPI 700R4 WS6 1992 Pontiac Firebird T-Top 5.0L TBI 700R4 My cardomain page  I don't like to save, it's more fun to spend!! |
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11-18-2012, 07:06 PM
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#6 |
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Registered User
Join Date: Jan 2012
Location: Denton, Texas
Posts: 92
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Re: Third Brake Light
I just ran another wire from my brake light wire at the brake, took about 15 minutes. Thanks for the how to BLE 'BURBAN.
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11-19-2012, 02:36 AM
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#7 | |
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In the Forgotten far North.
Join Date: Jul 2007
Location: Anchorage, Alaska
Posts: 2,627
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Re: Third Brake Light
Quote:
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1987 R3500 CREW CAB DUALLY (BIG RED)Acquired 06/12/2015 1990 chevy suburban V2500 5.7L My cluster Mods-Nov 2007 overhead console Stereo install Round 2 Aug 2009 Heated/turn signal mirror upgrade |
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11-19-2012, 09:52 AM
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#8 | |
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Account Suspended
Join Date: Oct 2012
Location: phx, az
Posts: 868
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Re: Third Brake Light
Quote:
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11-21-2012, 09:55 AM
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#9 |
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Registered User
Join Date: Nov 2000
Location: Ft. Mill, SC USA
Posts: 931
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Re: Third Brake Light
I installed a ford f150/250 third brake light. It fit really well, and has the brake light with bed lights. I ran a wire from the brake switch to the light. You also have to cut out the mounting hole some..... pics.
  
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PROJECT TRUCK: 1985 SWB C10 Silverado Black/Charcoal, 1990 V2500 Suburban, 2018 Suburban, 2005 GMC 2500HD CCSB, 2014 Toyota Camry SE, HAD.....1968 Camaro RS/SS Family owned since new; 350 3 speed  SOLD
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