To find the stock rim size for *your* Chevrolet truck, you need to:
* Check your owner's manual: This is the most reliable source.
* Look at the tire sidewall: The tire size is printed on the sidewall (e.g., P265/70R17). The last number (17 in this example) indicates the rim diameter in inches.
* Examine the rim itself: The size is usually cast into the rim.
* Use a VIN decoder: Entering your vehicle's VIN (Vehicle Identification Number) into a VIN decoder (many are available online) can provide detailed specifications, including rim size.
Without knowing the specific year, make, and model of your Chevrolet truck, it's impossible to give you a definitive answer.