Painless Classic Plus Customizable Chassis Harness
This 27 circuit 1973-1987 GMC/Chevy Painless wiring harness was designed to fit the trucks, Blazers, and Suburbans, whether C10, C20, or C30. It features a factory style bulkhead connector, allowing for easy mounting of the fuse block in the factory location, and has many of the factory connectors already installed on the harness out of the box. Included connectors: headlight switch, dimmer switch, wiper motor, ignition switch, blower motor & switch, blower resistor, and instrument cluster. Each wire is custom printed with the circuit identification as well as using GM color codes for easy installation. Wire your Squarebody once and wire it right with Painless.
This harness does not support factory installed TBI fuel injection or computer controlled carburetors.
Note: Doesn't support rear power glass, rear defrost, or rear AC/heat - many of these items are separate from the OE chassis harness.
- Factory style bulkhead connector mounts directly in the original location - no modification to firewall is needed.
- Most of the connectors come pre-terminated making for a painless install.
- High amperage charge wire is included allowing you to easily run modern alternator. The included MIDI fuse protects the system, getting rid of the troublesome fusible links that can leave you stranded with no easy fix.
- Dual fuel tank ready. If your Squarebody is a dual tank truck, simply use our included dual tank wiring harness to keep both fuel tanks functioning like the factory intended.
- Each harness comes open ended headlight and taillight wiring with extra length and can be paired with their light socket kits.
Connections Included:
Ignition switch, headlight switch, dimmer switch, wiper motor, blower switch, blower motor, blower resistor, instrument cluster and headlights, 10SI and 12SI alternator, HEI power and tach, and 20 extra 56 series terminals for use with factory GM 56 series connector such as headlight switch, wiper switch or AC switch/blower motor.
Includes circuits for:
- AC & Heat
- Accessory / Camper Cover Light
- Accessory / Cigarette Lighter
- Accessory / Four Wheel Drive Switch
- Backup Lights
- Brake Lights
- Charging
- Cruise Control
- Dome / Courtesy Lights
- Electric Choke
- Electric Fuel Pump
- Emergency Flashers
- Fused Power Source
- Headlights
- Horn (Relay)
- Ignition Coil
- Instrument Panel Lighting and Gauges
- Park Lights
- Power Door Locks
- Power Windows
- Radio/Clock (Constant and Switched)
- Starting
- Tail Lights
- Third Brake Light
- Turn Signals
- Wipers and Washer Pump
Including Wires For:
- Brake Warning Light
- Four Wheel Drive Light
- Fuel Gauge
- Oil Gauge
- Speakers
- Tachometer
- Temperature Gauge |