76 Sierra brake / turn wiring

[Rorydude]

Hey.. Working on a 76 GMC sierra 1/2 ton v8 350... truck was given to me the owner said it would never run again.. well proved him wrong.. lol.. but during the restore process i found some sketchy wiring.. i was hoping someone her would know a link to a free wiring diagram for the brake / turn lights.. or maybe someone here knows what color goes where.. lol.. thnx alot

[citydriver]

Welcome to the Forum

 

In my experience, the wire colors on GM vehicles are fairly consistant...but I don't have them ALL in memory...but the rear colors should be as follows:

YELLOW - left turn/brake

DARK GREEN - right turn/brake

BROWN - parking/running lights

LIGHT GREEN - back-up lamps

BLACK OR WHITE - chassis ground

 

If I remember correctly,the front should be:

DARK BLUE - right turn

LIGHT BLUE - left turn

BROWN - parking lights

BLACK - ground

 

Hope this helps

[Rorydude]

dude u rock.. thanks alot... when i 1st got the truck it had 22 guage speaker wire running to the rear lights and i just hated that..

[citydriver]

dude u rock.. thanks alot... when i 1st got the truck it had 22 guage speaker wire running to the rear lights and i just hated that..

 

<{POST_SNAPBACK}>

 

 

 

Did the lights flash with the music?

 

I hate barn-jobs like that

 

As long as you have to re-wire the lights, may I suggest you upgrade the wire to 14 gauge. I wouldn't go any smaller than 16 gauge wire, and be sure to seal all of your connections with silicone or use water-tight connectors to avoid any corrosion problems in the future...just a thought