* Your Owner's Manual: The most likely place to start. Check the section on maintenance or diagrams.
* Online Repair Manuals: Websites like Haynes.com or Chilton.com offer online repair manuals (often subscription-based) with detailed diagrams and instructions. These are usually very accurate.
* Ford's Website (Potentially): While less likely to have a detailed diagram directly available, Ford's website might have parts diagrams that could be helpful. Navigating their parts catalog might require your VIN.
* Auto Parts Store Websites: Websites of major auto parts retailers like AutoZone, Advance Auto Parts, or NAPA Auto Parts often have online parts catalogs. Searching for your car's year, make, and model usually brings up diagrams showing the belt routing.
* YouTube: Search YouTube for "1998 Ford Mustang GT serpentine belt diagram" or "1998 Ford Mustang GT serpentine belt replacement." Many videos show the belt routing during a replacement. However, always verify the information against a trusted source.
Important Note: When replacing a serpentine belt, it's crucial to have the correct diagram to ensure proper routing. Incorrect routing can damage the belt and other components. If you're unsure, consulting a professional mechanic is recommended.