However, here are some resources where you might be able to find one:
* Chilton's or Haynes repair manuals: These are readily available online and at auto parts stores. They usually contain detailed diagrams and instructions for repair and maintenance, including the steering system.
* Online automotive parts websites: Sites like AutoZone, Advance Auto Parts, and RockAuto often have diagrams for parts you're looking for. You can try searching for "1985 G20 Chevy van steering assembly diagram" or specific parts like the steering box or tie rods.
* Your local library: Libraries often have access to repair manuals and other automotive resources.
* Specialty automotive forums: There are online communities dedicated to specific makes and models of vehicles. You might be able to find someone who has a diagram or can direct you to a resource.
* Professional mechanics: If you're struggling to find a diagram, consider asking a local mechanic for help. They may have access to resources you don't.
Remember: Always be sure to verify the accuracy of any diagrams you find. It's important to use a reliable source to ensure you're working with the correct information.