Abstract: A gauge for indicating the setting and linear stroke movement of a brake rod of a brake assembly. Reference indicators are provided on both the brake-rod's yoke or clevis and on the arm of the brake's slack adjuster member; and the indicators cooperate, by their relative movement, showing brake rod travel and adjustment as a visual indication by the relative movement by the reference indicator of the linearly-moving clevis with respect to the angular rotation of the reference indicator on the rotating-slack adjuster arm.

Abstract: An air brake stroke length gage in cooperative arrangement with an air brake system. The gage consists of a stroke length indicator and a reference marker. The stroke length indicator is mounted upon and moves with the push rod of the brake system. The reference marker is fixably attached to the air brake system adjacent to the push rod at a distance which corresponds to the appropriate stroke length for the brake system when properly adjusted. When the brake is fully actuated, the spacial relationship between the stroke length indicator and the reference marker provides a visual indication of the brake system's adjustment.