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! Painless Classic-Plus Customizable 27 Circuit GM Truck Chassis Harness - 20205 This 27 circuit 1973-1987 GMC/Chevy Painless wiring harness was designed to fit the trucks, Blazers, and Suburbans*, whether C10, C20, or C30.Including connectors for: the headlight switch, dimmer switch, wiper motor, ignition switch, blower motor & switch, blower resistor, and instrument cluster.. 73-87 GM truck, Blazer or Suburban;Does not support factory installed TBI fuel injection or computer controlled carburetors;Does not support rear power glass, rear defrost, or rear A/C/Heat;Features factory style bulkhead connector;Easy mounting of the fuse block in the factory location;Has factory connectors already installed on the harness out of the box;Includes connectors for: the 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;Uses GM color codes for easy installation;California Residents: WARNING 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.