There's no single definitive answer without knowing this. To find out which size wipers you need:
* Check the owner's manual: This is the most reliable source. It will specify the correct wiper sizes for your specific vehicle.
* Look at the existing wipers: The size is usually printed on the wiper blade itself.
* Check a reputable auto parts store website: Enter your vehicle's year, make, and model (including Crew Cab) into websites like AutoZone, Advance Auto Parts, or Napa Auto Parts. Their online catalogs will show you the correct wiper sizes based on your vehicle's specifications.
Without checking your truck directly, any size I give you would be a guess and potentially incorrect, leading to improper wiper function.