I want to install a Goose neck plug in the back of my '71 F250.  I want to do it through a separate relay/fuse box.  I have been searching for almost a year for a write up on it or a kit or...….

 

So I thought I would ask here.  How do I go about this.  I want to have the electrical load separate from the main wiring to protect the main pickup harness.  I have a 20' chunk of trailer harness and the plugs, a relay/fuse box out of the '94 dodge donor, and a brake controller.  

 

I also want to put the headlights on relays and have a relay for additional lights.

 

Any guidance will be helpful.

Trailer brake controller installation is straight forward following the instructions provided by Tekonsha.  I'd use the 20 amp auto-reset circuit breaker and the black, white and blue wires be 12 gauge with all connections soldered and sealed.

 

                           CONNECTOR                        TRUCK

#     FUCTION         COLOR      GAUGE ---    #              COLOR

1  GROUND              WHITE       12-10 ---    ADDED     WHITE

2  TRAILER BRAKE  BLUE         12      ---    ADDED      BLUE

3  TAIL/MARKER       BROWN    16      ---     285            BROWN

4  BATTERY              RED           12-10 ---    ADDED      RED

5  L-TURN/BRAKE    YELLOW    16      ---    283            YELLOW/BLACK

6  R-TURN/BRAKE   GREEN       16      ---    282            GREEN

7  BACK-UP/AUX     ORANGE     16     ---     ADDED     ORANGE

 

 

The red wire is use to recharge the trailer battery and supply added power for additional equipment such as a power winch.  Determine the load and install 12-10 gauge wire with a corresponding 20 to 30 amp auto-reset circuit breaker.  

 

The added white wire is used to ground the trailer's electrical system to the truck's electrical system.  The wire gauge should be the same size as the largest power wire, brake or battery, 12-10 gauge.  Grounding the white wire at the battery negative terminal will give the best system performance.   

 

The wires for the trailer's turn signal/brake, marker/tail and back-up lights can be run to and fused in the extra PDC before going to the extra pin connector.  Indicated below are a couple of places the truck wire harness can be spliced into for these lights.   

 

 

IBMobile, You, sir, are my hero.  I need to get this printed up and get caught up in the shop so I can get this done before I need to drive this beast in the Spring.  I've been fighting retarded amounts of snow accumulation this week.

 

Thank you, thank you, thank you