
With our Original Design Series™ wiring, you can either rewire the vehicle one harness at a time, rewire a specific area of the vehicle (for example, the engine compartment), or what we recommend, completely rewire the vehicle bumper-to-bumper by purchasing all the harnesses at one time and save 10% off your entire purchase! All you need to do is to tap into your wiring harness to add those devices. Keep in mind that many of the added aftermarket devices you purchase (like gauges, lighting, electric fans, etc.) come with their own wiring.

Then making the necessary modification yourself. For faster, easier installation, we recommend starting with an electrically sound foundation by choosing the Original Design Series™ wiring. Please consult our online catalog to check availability on your specific make & model vehicle, or call our technical support department for more information. In this situation, we recommend that you purchase our Original Design Series™ wiring and the appropriate conversion product(s). Due to the popularity of these updates, we may offer a modified wiring harness, conversion wiring harness, or conversion device to accommodate these updates. If you've answered "yes" to any of these questions, we may have a solution for some year/make/model vehicles. Are you adding General Motors' HEI electronic ignition?.Are you replacing an externally regulated alternator/generator with an updated internally regulated alternator?.


You will NOT have to cut any wires, crimp any terminals, or make any modifications to these harnesses when installing them in your classic car or truck. These are full-assembled, ready to install, “plug & play” accurate reproduction wiring harnesses.

(original equipment manufacturer) specifications, using the original factory blueprints, and are factory-correct in every way. These harnesses are made to the exact O.E.M. Our Original Design Series™ wiring harnesses are manufactured exactly as the wiring was made when your vehicle left the factory. What are our Original Design Series™ wiring harnesses?
