What is the maximum pushrod stroke for rear brakes as per inspection guidelines?

The maximum pushrod stroke for rear brakes, as per inspection guidelines, is established at 2.5 inches. This measurement is crucial because it indicates the amount of travel that occurs in the pushrod when the brakes are applied. If the pushrod stroke exceeds the specified maximum, it can indicate issues such as excessive wear in the brake components or problems with the hydraulic system. Ensuring that this measurement is within the acceptable range helps in maintaining optimal braking performance and safety on the road.

The other options do not meet the standards set in the guidelines. For instance, if the stroke were shorter than 2.5 inches, it could signify that the brakes are not making full contact or are improperly adjusted, potentially leading to reduced braking effectiveness. A stroke longer than 2.5 inches could indicate significant wear or failure in the brake system, raising critical safety concerns. Thus, the 2.5 inches maximum is a key parameter for ensuring the reliable operation of the vehicle's braking system.