I'm not sure if you're looking for harnesses for the entire truck but CJ Pony Parts has really good reproduction harnesses for your year model as well as Painless, American Autowire and other accessories. I've got harnesses from CJP for my '65 and they are just like factory with the labeling, connectors and sheathing. For quality replacements, I haven't found better prices either.

 

 

Too easy man. I've used CJ for my F100 and my '65 Mustang in the past. Good luck!

 

Thank you all so much, ill look into this and order the bits i need.

 

I searched CJ Pony - not sure if I understand the recommendation above. Are they saying CJ offers their own OEM type reproduction harness?

Their site offers American Autowire, Painless and Ford Performance.

Thank you for the clarification. I can be almost too literal at times....meaning a little slow.

seems like either Painless or AA wire will work...if I am reading their product description correctly.

 

The only harness not available anywhere is the underdash and fusebox. There was a company that made them but has since went out of business.

 

My 2 cents: I did a full re-wire 1 year ago using AA. I chose AA partly based on an IDIDIT steering column swap that had the correct connector mating. I think the AA product is pretty good. It thoroughly covered all the stock items and accommodated likely modifications like additional gauges, cab lighting, electric fans and fuel pump. It pushed me to get a 1-wire alternator, instead using my existing older style alternator and regulator - which cleaned-up the engine compartment a bit, and got me more performance out of the alternator.
It had all the correct connectors and modules for wipers, lights, ignition, etc. They do not use stock connectors for the "field" wiring so some items may need to be cut, then new contacts crimped and pushed into the AA connector housings. It came with good ring terminals for grounding the lights, etc. I think the only "old" wires left on my truck are the leads from the heater blower motor.
Because I have a non-stock cluster, and other mods like reverse lights, power washer, winch control, etc, I purchased a number of additional AA contacts and connectors - connectors come in multiple counts (1 wire, 2 wire, etc) - to handle the variations and keep things nice and uniform. I also bought a bunch of various ring and spade contacts, as well as various gauges and colors of hookup wire that matched-up with the AA color scheme (like Pink for +12VDC).
Be sure to get the correct crimpers for whichever system you use. AA has a large and a small version of their contacts (they fit in the same connector housings), and have a crimper for each size.
I was not in love with the AA contacts, connectors and crimpers. The built connectors were pretty difficult to plug and unplug - not bad for good contact, but seemed excessive and occasionally I "broke" something. The crimpers are not a ratcheting type, so it's a bit of a three handed operation to crimp the pins. All in all, it got the job done pretty well.
It sure felt great when I was done and I knew how everything went together - no more ghosts.

You probably know this, but good grounding is key, so get all ground locations sanded bright, and use silicone grease on those spots to keep out future corrosion.

Here are a few pics: Leftover wiring bits and tools. A shot of the cluster with ring terminals on the instruments and AA connectors that plug directly into the AA harness.

 

Wait.

You mean... we're not supposed to use Romex, extension cord, and wire nuts!??

 

I finally found my PO!

 

66 F250 4x4:
now that is impressive and an excellent summary of your work. Much appreciated - tom

 

You're welcome. I'm happy to offer more info on how it went if you'd like.

 

@66F250_4x4 Re: 1 wire alternator, did you use Powermaster or Gm style alternator? I am torn between the styles. The Powermaster is pretty expensive, but it would have the original look of a generator. It would also bolt up with the same mounting bracket. As I am posting this, I realize you probably had an alternator rather than generator to begin with. I think after ‘65 that was standard.

 

In the past I've used a company call Rebel Wire in TN. for custom and replacement harnesses. Good quality, each wire labeled about every 9" and plenty of tag end. Staff will help every way they can. Not the cheapest but quality is very high.

 

I used Powermaster..https://www.summitracing.com/parts/PWM-8-47101
Again, this Powermaster is a 1-wire and does not use the external regulator. It did bolt right up into the bracket, and the same belt was a good length, and ran at the right RPM range regarding pulley diameters
My truck did already have an alternator in the circuit - so I did not deal with that change. I have a non-stock 460 (1970 Torino motor - 429 CJ stroker) and was unsure exactly what I had relative to original equipment.
I did spend a fair bit of time on the phone with Powermaster - the tech support guy was very helpful and knowledgeable. A bit foggy at this point, but we did discuss the details of my application, both electrical and mechanical, and he was angling towards a slight custom part number. However I ultimately determined that I was giving him some wrong info and that an OTS part number fit my application well. I suggest giving them a call to navigate the generator change, etc.