The Classic Update Kit is designed for projects that demand more circuits and capability than an original factory harness can provide. Each kit includes everything needed to rewire your vehicle from headlight to tail light, while offering built-in support for today’s most popular upgrades such as electronic fuel injection (EFI), aftermarket gauges, and other common performance modifications.
Key Features:
Modern ATC Fuse Panel:
Features an updated fuse panel and fuses with durable GXL wiring throughout. Each wire is labeled every 3–5 inches for easy identification and simplified installation.
Pre-Assembled Dash Harness:
Includes our exclusive gauge cluster disconnect system, compatible with both stock and aftermarket instruments.
Engine & Front Light Harness:
Equipped with extra-long leads for flexible, custom routing and designed to accommodate modern engine and transmission combinations.
Power Accessory Integration:
A built-in six-way power accessory plug serves as a convenient power source for aftermarket accessories.
Rear Body Harness:
Comes with extended-length wiring for custom routing and clean installation throughout the rear section of the vehicle.
High-Output Charging Support:
Includes a 175-amp mega fuse kit and 6-gauge charge cable to handle the demands of high-output alternators and internally regulated charging systems.
OEM-Quality Components:
Supplied with original-style connectors, terminals, and lamp sockets to ensure reliable performance and a factory-quality finish.
Upgraded Switches & Adapters:
Comes with a new 26-amp headlight switch (featuring an internal circuit breaker), a new floor dimmer switch, and a steering column adapter kit for use with both stock and aftermarket columns.
Modern Compatibility:
Includes a replacement ignition switch compatible with HEI and EFI systems, as well as a new wiper switch for complete functionality.
