To find the correct size, I recommend checking one of these resources:
* Your owner's manual: This is the most reliable source. The manual should specify the correct wiper blade sizes for your specific truck.
* The sticker on your driver's side doorjamb: This sticker often lists recommended tire pressures and other vehicle information, sometimes including wiper blade sizes.
* A reliable online parts store: Websites like AutoZone, Advance Auto Parts, or Napa Auto Parts allow you to search by vehicle year, make, and model. Enter your specific details (including cab style and trim level) to get the correct sizes.
* A local auto parts store: A knowledgeable associate at a local auto parts store can help you identify the correct wiper blades based on your truck's information.
Do NOT rely solely on general information found online. Many sites provide generic sizes that may not be accurate for your specific 2003 Chevy Silverado 1500.