FFG 1973-1979 Ford Wire Harness

Clean power. Zero headaches. Your classic Ford needs wiring that works with a modern engine - not a universal harness bent into shape and hoped over. This one was born in our own build shop and refined through Coyote and Godzilla swaps until reliability; serviceability and clean integration all landed at once. Every circuit; every connector; every branch is intentional. Modular front; cab and rear sub-harnesses. All bulkhead connectors. Individual circuit identification labels on every wire. Three 11x17 laminated schematic sheets so the truck is documented for whoever works on it next - including you; five years from now. Wired up in one to two weeks. That is the point.

  • Built for these trucks - purpose-built circuits; not a universal harness adapted.
  • Modular - front; cab and rear sub-harnesses install and service independently.
  • Every wire labeled - individual circuit identification; no tracing later.
  • Documented properly - three 11x17 laminated schematics stay with the truck.
  • Coyote or Godzilla - 5.0L; 5.2L and 7.3L; with 6R80; 10R80; 10R140; Tremec or M8X.
  • One to two weeks - wired up; not a winter-long electrical project.

Install Level: Advanced - full vehicle harness installation

Purpose-built for 73-79 Ford truck architecture - no modifications or adaptations.
Shares connectors directly with the drivetrain ECU packs.
Extra wire length included for custom routing.

Fat Fender Garage
SKU: FFG-F7379-WH ISBN:
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FFG 1973-1979 Ford Wire Harness
$1,695.00
Overview
Specifications
Tech Resources
Compatibility

Clean Power, Zero Headaches

Modern Power Without the Guesswork

Your classic Ford needs wiring that works with modern engines. This complete harness was born in our own build shop, refined through countless Coyote and Godzilla swaps until we nailed the perfect balance of reliability, serviceability, and clean integration. Your truck will be wired up in 1-2 weeks with this FFG exclusive kit.

Built for Modern Swaps

We didn't adapt some universal harness – we engineered this system from the ground up for 73-79 Ford trucks running serious power. Every circuit, every connector, every branch is intentionally designed to support today's engines, transmissions, and electronic accessories without an electrical nightmare.

Works with:

  • Gen 1,2,3, and 4 Coyote Configuration – 5.0L and 5.2L ready
  • 6R80, 10R80, Tremec, or M8X transmissions
  • Godzilla 7.3L Configuration – Built for serious torque
  • Digital Gauge Integration – Modern instrumentation support
  • Shares connectors directly with your drivetrain's ECU packs.

Your complete kit includes:

  • Modular front, cab, and rear sub-harnesses
  • All bulkhead connectors
  • Individual circuit identification labels
  • Complete installation documentation
  • Three 11x17 laminated schematic sheets

*This harness is engineered specifically for 73-79 Ford truck architecture – purpose-built circuits integrate seamlessly with modern Ford powertrains without modifications or adaptations

Fits 1973-79 Ford F-Series trucks with Gen 3/4 Coyote or Godzilla 7.3L engines

Compatible with 10R80 and 10R140 transmissions

Extra wire length included for custom routing

Fat Fender Garage part number FFG-F7379-WH
Modular front; cab and rear sub-harnesses
All bulkhead connectors included
Individual circuit identification labels
Complete installation documentation
Three 11x17 laminated schematic sheets
Engine support: Gen 1; 2; 3 and 4 Coyote - 5.0L and 5.2L
Engine support: Godzilla 7.3L
Transmission support: 6R80; 10R80; 10R140; Tremec; M8X
Digital gauge integration
Shares connectors directly with drivetrain ECU packs
Extra wire length for custom routing
1973-79 Ford F-Series trucks.
Gen 1; 2; 3 and 4 Coyote - 5.0L and 5.2L.
Godzilla 7.3L.
Transmissions: 6R80; 10R80; 10R140; Tremec; M8X.
Digital gauge systems.

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