Hi guys, My 85 f-150 has no wiring stuff that I can see for hooking to a trailer. Is this common, or did somebody pull out all the wires?
Thanks

 

It would depend on if the truck came with a factory towing package or not.

The towing package included the 4 shock setup on the front, transmission cooler for the automatic equipped trucks, trailer hitch, and wiring harness, as well as some heavier duty rear springs.(Think I covered all the extra's, feel free to add).

Adding a wiring harness for a trailer plug isn't a hard job, how-ever.

You'll need to have a fully charged battery, light tester, a pair of wire cutter/stripper pliers and at the very least some decent crimp connecters. My preference for wiring anything is solder and shrink-tube, but some don't have the patience for this, or the tools required.

You will need to test each wire at the harness which generally runs from side to side between the tail lights at the rear of the truck, just above the bumper, underneath the truck. Using the light tester, you can determine which wire is tail lights, which is left/right signal/brake and which is reverse.

You can buy a generic trailer plug harness from pretty much any automotive store. The plugs are labelled, and will come with a wiring diagram to help you hook up the wires properly.

Depending on what you are looking at towing, it might not hurt to also consider adding at least the transmission cooler, if your truck has an automatic transmission.

If it's just a utility trailer to haul a small garden tractor or garbage around, no biggie. If the intent is to pull something like a holiday trailer or car trailer, it would be advisable.

 

My truck has the 4 shocks upfront, I don't see a transmission cooler, at least not something recognizable,(what would it look like?) I have a hitch, and overload springs as well in back (i'm not sure if they are anything special though).
I don't have anything specific to tow right now, but I just wanted to be able to hook a trailer up to it if necessary. Probably not something big, more like a motorcyle trailer or something.

 

The transmission cooler will be up front, in front of your radiator. It's roughly the same size as the A/C condenser that also resides up front by the rad.