How do you determine the size of a brake drum for a Jeep CJ?

To determine the size of a brake drum for a Jeep CJ, you need to first identify the specific model year and brake system configuration, as sizes can vary. Measure the diameter of the existing drum or consult the vehicle's service manual for specifications. Additionally, consider the width of the brake shoes, as this will also influence the drum size. If replacing, it’s best to match the new drum with the OEM specifications for compatibility.