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Brake Shoes. 1  Brake shoes are at the heart of a drum brake system and are the old school approach to slowing cars and trucks down. Drum brakes have been in use since the creation of automobiles and can still be found on the rear axles of some trucks and small cars due to their simple design and incredible durability.
These parts are essential in making sure that the brakes work properly. The brake drums rotate around the brake shoes. Each time you hit your car's brake pedals, the piston moves the brake shoes toward the brake drum's inner surface. The entire assembly also uses springs, which squeeze the brake shoes against the drums. These springs also enable the shoes to pull out when you release the brake pedals. However, constant usage will eventually wear out the brake drum. As the brake drum's surface thins out, the braking capacity of your vehicle lessens.