* Online Parts Suppliers: Sites like Classic Industries, NPD, Ames Performance, and others that specialize in classic car parts often have downloadable wiring diagrams (sometimes for a fee). Search their websites for "1974 Plymouth Duster wiring diagram." Be aware that the exact diagram you need might depend on options your car had (e.g., air conditioning, power options).
* eBay: You can often find reproduction wiring diagrams or even original shop manuals on eBay. Search for "1974 Plymouth Duster wiring diagram" or "1974 Plymouth Duster shop manual."
* Online Forums: Forums dedicated to Mopar vehicles (like the Plymouth Duster forums you can find through Google) are a great resource. Members may have scanned diagrams they can share, or they might be able to point you to a reliable source.
* Your Local Library: Some larger libraries have extensive collections of automotive repair manuals, including those for classic cars. Check with your library's reference desk.
Important Considerations:
* Year and Options: The exact wiring diagram will vary slightly depending on the specific model year (even within 1974) and the options installed in your particular Duster (e.g., air conditioning, automatic transmission, power steering). Make sure you're searching for a diagram that accurately matches your car.
* Factory vs. Reproduction: Be aware that some diagrams might be reproductions and may not be perfectly accurate. While they can be helpful, always double-check everything before making any changes to your car's wiring.
* Safety First: Working with car wiring requires care. Disconnect your battery's negative terminal before starting any work. If you're not comfortable working with electricity, seek help from a qualified mechanic.
Good luck with your search! Finding the right diagram will significantly simplify any electrical repairs or upgrades you plan to do on your Duster.
