To determine the size of your front brake rotors, you have a few options:
* Visually inspect the rotors: The easiest way is to directly measure the diameter of the rotor itself using a ruler or caliper. This will give you the most accurate measurement.
* Check your owner's manual: Your owner's manual should list the specifications for your vehicle, including brake rotor size.
* Look up your vehicle's specifications online: Use your VIN (Vehicle Identification Number) or your truck's details (year, make, model, engine, trim level, etc.) on a parts website like AutoZone, Advance Auto Parts, or RockAuto. These sites usually have detailed information about the parts that fit your specific vehicle. Search for "front brake rotors" and compare the dimensions listed.
* Check the old rotors: If you're replacing the rotors, the old ones will have the dimensions stamped on them somewhere.
Remember to always consult a parts professional or your owner's manual before purchasing replacement parts to ensure you get the correct size. Using the wrong size rotors can be dangerous.
