Painless Performance 19-circuit GMC/Chevy truck harnesses consists of a new chassis designed harness for use on 1963-66 GM/Chevy pickups. These harnesses includes a pre-terminated fuse block and high temp, color coded wire. Complete wiring from headlight to taillight.   Each harness includes circuits for:  * Air conditioning / heat * Accessory / Four wheel drive switch * Backup lights * Charging * Dome  * Electric choke * Emergency flashers * Fan relay  * Fused power source * Headlights * Horn * Ignition coil * Instrument panel lighting and gauges (see notes above) * Parking lights * Radio (constant/ignition hot) * Starting * Taillights and trailer lights * Turn signals * Wipers
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