Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - 1980 chevy 3/4 ton trailer brake hookup
View Single Post
  #5 (permalink)  
Old 03-16-2011, 07:53 PM
75gmck25 75gmck25 is offline
Registered User
 
Join Date: Aug 2006
Location: Alexandria, VA
Posts: 1,755
Wiki Edits: 0

Thanks: 4
Thanked 65 Times in 63 Posts
You can get the basic four pin trailer hookup using a T-One adapter that plugs into your wiring behind the back bumper.

The four wires are for:
Taillights
Right Turn
Left Turn
Ground
You will probably also have to switch to a heavy duty flasher for the turn signals.

To get the other three pins (including brakes) you need:

Black wire - constant 12 volts to power the trailer or trailer battery
Blue wire - trailer brake activation
Purple wire - backup lights

This site has some useful diagrams. http://www.etrailer.com/faq-wiring.aspx

Bruce
Reply With Quote