This harness by Painless Wiring may not be an OEM replacement, but is a far superior product that features a modern fuse panel, flashers, relays and as always, each wire has its use printed on it. This 12 circuit unit is for a normal driver and is an adaptation of the universal 12 harness designed to custom fit your "Shoebox Chevy" with a factory location mounting plate for the fuse block, special dash and turn signal connectors.
910-20107 Instructions (PDF)
This harness includes circuits for:
- Headlight Switch - Power to headlight switch. Power wires out of headlight switch to head light dimmer switch, tail lights, dash lights and park lights.
- Dimmer Switch - Wires include power from headlight switch and power out to low and high beam headlights.
- Wiper Switch - Power to wiper switch. You will need to retain the wires between the wiper switch and your wiper motor.
- Turn Signal Switch - Power into and out of your column mounted turn signal switch. Also included in this kit are both styles of GM turn switch connectors. Note: these will connect to most aftermarket and factory steering columns.
- Ignition Switch - Power into and out of to fuse block (ignition, crank and accessory)
- Brake Switch - Power into and out of brake switch. This includes a third brake light wire.
- Courtesy Lights - Power and ground circuits for dome light activation.
- Alternator - Charge wire and alternator field activation wires. (Most alternators can easily be wired up to this Painless harness). Included in kit is a high output alternator wire that allows you to use up to a 140 Amp alternator.
- Horn - 40 Amp horn relay mounted to fuse block
- Radio - Harness includes constant B+ (for preset memory) and ignition hot circuits for any aftermarket or factory radio.
- Starter - Crank signal wire for starter solenoid.
- Engine section wires including electric choke, coil power, coil to tach signal, oil pressure, engine temperature, and A/C compressor clutch control wire.
- Headlight section wires including right and left high and low beam headlights, turn signals and park lights.
- Tail section wires including tail lights, brake lights, turn signal lights, fuel gauge sender, third brake light, and reverse lights.
- Dash panel section wires including fuel, temperature, oil pressure, voltage, tachometer, speedometer, high beam and turn indicators and gauge illumination.
- Also included in kit is a fuse block mounting bracket, rubber grommet, 4 inch zip ties, 70 Amp maxi fuse and a large assortment of crimp style connectors.
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