Where can you find a vacuum line diagram for a 1974 Toyota Hilux pickup?

You can find a vacuum line diagram for a 1974 Toyota Hilux pickup in the vehicle's service manual, which is often available for purchase online or at auto parts stores. Additionally, websites like Toyota forums, enthusiast groups, or classic car restoration sites may have downloadable diagrams or user-generated content. Online platforms like eBay or specialized automotive literature retailers might also have the necessary manuals. Lastly, consider checking with local Toyota dealerships for any archived materials.