American Autowire 73-82 Chevy/GMC Truck Classic Update Kit (AAW510347)

The American Autowire 73-82 Chevy/GMC Truck Classic Update Kit (AAW510347) is a comprehensive and modern wiring harness system designed to completely replace the original electrical harness in 1973-1982 Chevrolet and GMC trucks, Blazers, and Suburbans. Created for restomod projects, this kit goes beyond a simple replacement, providing additional circuits to accommodate popular modern upgrades. It offers a new electrical foundation for your classic vehicle, ensuring a reliable and safe platform for electronic fuel injection (EFI), aftermarket gauges, high-output alternators, and other custom modifications. The kit features high-quality GXL wire, an updated fuse panel, and clear labeling throughout to simplify the installation process from the headlights to the taillights.

KEY FEATURES AND BENEFITS:

• Complete Vehicle Rewire: This kit provides all the necessary wiring to replace the entire electrical system of the vehicle, including the dash, engine, front lighting, and rear body sections.
• Accommodates Modern Upgrades: Designed to support popular add-on items such as electronic fuel injection (EFI), aftermarket gauges, and other supporting modifications by providing the necessary circuits.
• Enhanced Safety and Reliability: Utilizes an updated ATO fuse panel and modern GXL wiring for improved safety and long-term reliability compared to the original factory harness.
• Simplified Installation: The harness is pre-built, and all wires are clearly labeled every 3 to 5 inches, which significantly reduces installation time and complexity.
• Flexible Routing: Extra-long leads are included on the engine, front light, and rear body harnesses, allowing for custom routing to accommodate engine swaps or other modifications.
• High-Output Charging Support: Comes with a 175-amp mega fuse kit and a heavy-gauge 6-gauge charge cable to safely support a high-output charging system and internally regulated alternator.
• Comprehensive Component Inclusion: The kit includes a new headlight switch with an internal circuit breaker, a new floor dimmer switch, and original-style replacement connectors, terminals, and lamp sockets.

SPECIFICATIONS:

• Included in Product:
• Pre-built dash harness with gauge cluster disconnect system
• Engine and front light harness
• Rear body wiring
• Updated ATO fuse panel and fuses
• 175-amp mega fuse kit with 6-gauge charge cable
• New headlight switch with internal 26-amp circuit breaker
• New floor dimmer switch
• Original-replacement connectors, terminals, and lamp sockets
• Mating connector and terminals for adapting to earlier GM or aftermarket steering columns
• Gauge cluster printed circuit board connector and terminals
• Six-way power accessory plug

HOW TO USE:

1. Preparation: Before beginning installation, disconnect the vehicle’s battery. Remove the original factory wiring harness from the vehicle’s dash, engine compartment, and chassis.
2. Dash Harness Installation: Carefully install the pre-built dash harness into the vehicle. Connect it to the original dash components, using the included connectors for either the stock gauge cluster or aftermarket instruments.
3. Front and Engine Wiring: Route the front light harness and engine harness through the firewall using the included bulkhead connector. The extra-long leads can be cut to fit the specific needs of your engine and front accessories. Connect the engine wiring to the ignition system, charging system, and various senders.
4. Rear Body Wiring: Route the rear body harness along the vehicle chassis, connecting it to the taillights, license plate light, and fuel tank sending unit. The extra-long leads allow for custom routing as needed.
5. Accessory Connections: Use the six-way power accessory plug to provide a convenient power source for any aftermarket accessories you are adding. The harness also includes dedicated connections for components like tachometers, electric fans, and EFI systems.
6. Final Connections: Install the new headlight and floor dimmer switches. Make the final connections to the battery and charging system using the provided 175-amp mega fuse kit for a high-output charging system. Once all connections are secure, reconnect the battery and test all electrical systems.

BENEFITS OF USING AMERICAN AUTOWIRE 73-82 CHEVY/GMC TRUCK CLASSIC UPDATE KIT (AAW510347):

• Complete Modernization: Provides a complete and modern electrical foundation for your classic truck, allowing you to add new features and systems with confidence.
• Improved Performance: The high-quality GXL wire and high-amperage components ensure reliable power delivery to all systems, from the lights to the engine.
• Streamlined Installation: The combination of a pre-built harness, labeled wires, and detailed instructions saves significant time and effort compared to building a custom harness from scratch.
• Future-Proofing: The extra circuits and flexible design ensure the harness can accommodate future modifications or upgrades without needing a full replacement.
• Safety Assurance: The updated fuse panel and included mega fuse provide modern circuit protection, reducing the risk of electrical shorts and potential fire hazards.

FEATURES:

• Uses a modernized ATC fuse panel for easy-to-find fuses.
• All wire functions are labeled every 3 to 5 inches for quick identification.
• Engine and front light harness leads are extra-long to allow for customized routing.
• The dash harness includes an exclusive gauge cluster disconnect system.
• Rear body wiring also has extra-long leads to accommodate custom routing.
• Includes original-style lamp sockets and connectors for a seamless fit.
• Comes with a new headlight switch and new floor dimmer switch.
• Features a six-way power accessory plug for easy hookup of aftermarket items.
• Includes a 175 amp mega fuse kit with a 6-gauge charge cable to support high-output systems.