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SKU: 510317 1966-1977 Ford Bronco Classic Update Kit

1966-1977 Ford Bronco Classic Update Kit
Purchase 1966-1977 Ford Bronco Classic Update Kit
  • SKU: 510317 1966-1977 Ford Bronco Classic Update Kit

  • $1,091.55

  • Manufacturer: American Autowire
  • Part #: 510317
  • Rating:
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Please read before ordering the 1966-1977 Ford Bronco wiring harness kit:


This kit is intended to be used in a modified vehicle. Please read this sheet thoroughly and be sure that you understand everything explained on it prior to opening any of the enclosed packages, or before attempting to install any of the components. Once this kit has been opened or a component installed, the kit is not returnable.

1. This kit should typically be used in a MODIFIED application only. This kit does not contain any wiring for, nor will it support the use of some of the more obscure

factory options such as the overhead reading or map lamp, time delay relay, overhead console, or door ajar lighting. There are no headlamp, dash panel dimmer, or

ignition switches included with this kit. You will need to retain and re-use your originals, or locate replacements if your originals are missing. The original OEM dash

harness wiring for any of the factory equipped A/C cars varied from year to year. None of that wiring is included with this kit, and therefore, this kit WILL NOT support

the use of any Factory installed A/C set up. However, this kit will support the use of, and does contain all of the necessary wiring for a factory heater system. It also

supplies power for any aftermarket A/C or heat system. The factory dash lighting was done through a separate stand-alone indirect lighting harness that snapped into

the shroud above the overhang of the dash cluster assembly and illuminated the face of the dash cluster by shining down on it. The lamp sockets for this harness are

very unique and are not commercially available. As with the factory set up, this harness is a separate unit that it IS NOT included as part of the dash harness, and will

need to be re-used. Your original, factory stand-alone dash lighting harness will plug into the AAW dash harness "dash lighting candelabra" just exactly as it plugged

into your original OEM dash harness "dash lighting candelabra". You will also need to re-use your original starter relay or purchase a new one from AAW (P/N 500007).

2. This kit only supports the use of a higher current self-exciting 1-wire alternator. An adapter will be necessary for any other applications. The use of a stock, low

amperage alternator is seriously discouraged as they cannot handle the higher current requirements of updated ignition systems, electric fans, aftermarket A/C

systems, stereo systems, air ride suspensions, and other power hungry accessories and will ultimately create performance issues with the system.

3. This kit WILL NOT support the use of a factory ammeter. All AAW kits are engineered to supply the optimum charge to the battery. To achieve this performance, we

route our 8ga. charge wire directly from the alternator output charge terminal to the starter battery termial. Due to the path of the charge being altered from the stock

configuration, the gauge can no longer see a charge vs. a discharge, so it will not work properly. When ammeters were originally used, most generator or alternator

current outputs were rated at a maximum of about 25-60 amps. Modified cars being built today typically utilize a 100 amp or higher output alternator. With these higher

current units, ammeters, generally speaking, become a safety hazard. Ammeters are usually wired in parallel to the charging circuit, are typically unfused, and can short

very easily causing a fire. A voltmeter is recommended as a good alternative.

4. This kit is wired with a full 12 volt primary ignition feed that is hot in the run position. Primary ignition voltage in the starting position is handled via a full 12 volt bypass

wire. Our system will support HEI, MSD, other electronic ignition systems, as well as most all computerized Fuel Injection systems. If you wish to run a points type

system, there are illustrations on the engine connection pages to do so. The connectors and terminals to install a ballist resistor for a points type system are included in

this kit, but extra parts (ballist resistor) that are not included in this kit will be required to complete that operation.


    Classic Update Kits give you one of the most complete kits on the market to "Make Wiring THAT Easy". They are designed for specific year, make, and model configurations. The 1966-77 Ford Bronco wiring harness kit is no exception. The kit boasts 14 features making it the most complete system of its type in the industry including:

    • A replacement headlight switch with internal 25-amp circuit breaker, adjustable length shaft, and custom knob.
    • Standard turn signal flasher, hazard flasher, and horn relay mounted on harness.
    • NEW compact ATO-Style fuse panel that is fully encased in a closed box assembly with coverlid and mounts inside the glove box (mounting hardware included). The fuse coverlid is labeled on the inside identifying all circuits by description and their respective fuse ratings. All high amperage output circuits incorporate the same superior spring steel reinforced terminals that are used in our Highway Series kits.
    • Harness is laid out and formed to allow for nearly all after market accessories such as; gauge packages, heat and air conditioning systems, etc.
    • Many original switch connector bodies - an American Autowire exclusive feature.
    • Steering column connectors can plug directly into most aftermarket steering columns or stock 1966-77 Ford columns using the adapter and terminals included in the kit.
    • Separate under dash courtesy lamp assemblies are also included for use along with your original dome/interior lighting feeds.
    • Instrument Cluster wiring is designed with a "cluster harness disconnect" system for easy service and assembly. Original terminals and connectors (another American Autowire exclusive) are provided for stock cluster connections. The system will also connect into most popular aftermarket gauges such as DAKOTA DIGITAL, CLASSIC INSTRUMENTS, AUTOMETER, VDO, and others.
    • Rear body harness assembly plugs into the main harness at the left kick panel location and our longer leads allow for stock or custom routing of the wires. Rear body wiring includes backup light lead wires and connectors along with stop and tail light lead wires and connectors to mate into the stock Ford tail and back up lamp pigtail assemblies. A license plate lamp lead connection, as well as fuel tank sender leads and tank extensions for both single and dual tank applications are also included.
    • New floor dimmer switch is provided for ease of installation. Wire length and connection accommodate original floor mount dimmer switch.
    • Engine wiring includes feeds for coil, tach, water temperature, oil pressure, electric choke, and electric speedometer (if needed). A heavy gauge alternator feed and fusible link are also included for any typical high output 1 wire or internally regulated alternator. Connectors supplied for power and tach leads for GM style H.E.I. distributors along with various oil and temp senders. A Ford Gen III series alternator adapter is available separately.
    • Front lighting includes extra long leads that can be routed for stock or optional appearances. All head light, parking light, and directional light leads, along with a switched trigger wire for an electric fan relay (usually recommended with AC) are provided. Mating terminals and connectors are also provided for you to complete your custom installation.
    • New ignition switch with indexed connector included.
    • New windshield wiper switch with indexed connector and motor leads included (must be mated to your stock motor through your windshield frame assembly).


Vehicle Applications

This part is designed to fit the following vehicles.

Ford Bronco 1966
Ford Bronco 1967
Ford Bronco 1968
Ford Bronco 1969
Ford Bronco 1970
Ford Bronco 1971
Ford Bronco 1972
Ford Bronco 1973
Ford Bronco 1974
Ford Bronco 1975
Ford Bronco 1976
Ford Bronco 1977

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