Drum brakes can be founds on the rear of many, many vehicles. Often times a car or truck will have disc brakes in the front, but drum brakes in the rear. While drum brakes are more difficult to service, they are cheaper to manufacture. Drum brakes work under the same principle as disc brakes: friction material (brake shoes) press against the inside of the drum to slow or stop the vehicle.
Like disc rotors, the machined surface inside of a drum will wear down over time. Worn down brake shoes can also contribute to this, even leading to scoring or gouging of the metal. Sometimes, it may be too much to have them machined again and they will need replaced.
Replacing brake drums may prove to be much more complicated than one would expect, especially considering the presence of the mechanical emergency brake. If you're unsure or not confident in performing the repair, consult with an automotive professional!
We stock and sell a wide variety of quality brake drums from these manufacturers: