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1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

Trailer wiring information

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Old Sep 3, 2009 | 08:53 AM
  #1  
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Trailer wiring information

This link was on the Ford Barn site and I thought some one here could use it. It has some good information on trailer wiring and trouble shooting:

http://www.etrailer.com/faq-wiring.aspx
 
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Old Sep 3, 2009 | 09:06 AM
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From: Guelph
Great site. If your doing just 4 wire trailer wiring here is a good way to remember where the wires go.Green is for the right side signal because the grass in the ditch is green. Yellow is for the left because the line down the centre of the road is yellow.Brown is the dark one so its for the park lights.White is your ground and I quess you see the white light just before you end up in the ground.
 
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Old Sep 3, 2009 | 12:41 PM
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From: Poway, Ca.
Great Site BOB! Saved to Favorites!

Here's a drawing of the flat four post plug just in case the grass is brown or the lines are white in your part of the state (tee hee):

Name:  W Flat Trailer Plug Wiring.jpg
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Old Sep 3, 2009 | 01:32 PM
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From: Guelph
It really screws you up when it snows LOL.
 
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Old Sep 3, 2009 | 02:53 PM
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Just wondering what does a tow hitch look like on the old F-1's and where are the attachment points on the frame?
 
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Old Sep 3, 2009 | 05:43 PM
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bookmarked, printed and filed...

good info.... thanks Bob tomorrow we have a 45' trailer to figure out why the brakes won't work on two trucks and will on the other trucks... this will come in handy

later


John
 
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Old Sep 3, 2009 | 05:59 PM
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Originally Posted by jniolon
bookmarked, printed and filed...

good info.... thanks Bob tomorrow we have a 45' trailer to figure out why the brakes won't work on two trucks and will on the other trucks... this will come in handy

later


John
Check the one that works first - when you screw that up every thing will be alike.
 
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Old Sep 3, 2009 | 06:12 PM
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I hope those 45' trailers got more than a 4 pin flat hooking them up!
 
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Old Sep 3, 2009 | 06:24 PM
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Originally Posted by 51MHF5
I hope those 45' trailers got more than a 4 pin flat hooking them up!
yep.... 6 pin standard for a gooseneck... I think it's just corroded terminals in the plug... construction folks fix most things by beating on it... I get to repair what they fixed...

you know the old saying... if you can't fix it with a hammer...it's an electrical problem

john
 
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Old Sep 3, 2009 | 10:53 PM
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I've been told a horse trailer is wired differently than other trailers. I even had someone show me in a book the difference. My friend bought a used Ford F-350 dually that he thought was owned by a horse rancher. When he hooked up his car trailer the brakes didn't work but the first time he turned on his headlights the brakes locked up. He hadn't used the trailer at night until he owned the truck for a few weeks and when it got dark one night he flipped on the lights. He had to rewire the light socket on the truck to make the trailer work.

Any one else have experience with horse trailer wiring?
 
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