AC Delco Brake Drums

When it comes to the category of brakes, drums seem to be the dinosaur of them all. Even so, drum brakes work on the same basic principle as disc brakes – shoes press against a spinning surface. A brake drum is a smooth metal cylindrical housing that is attached to the rear wheel hub. They are made from cast iron and are literally named after their obvious “drum-like” shape. The friction between the brake shoes and drums causes your car to slow down and stop. Most new cars from 1999 and above come with rotors at each of their wheels. Older cars may have drum brakes on the rear wheels and disc brakes on the front.

Automotive brakes use friction to convert a vehicle’s momentum into heat. When you step on the brake pedal in your car, a piston in the master cylinder pushes hydraulic fluid through tubes to the braking system at each wheel. With drum brakes, a hydraulic cylinder/piston complement pushes each shoe outward and into contact with the inner surface of the rotating drum. The brake shoe lining material creates a friction force against the drum, which slows down and ultimately stops the wheel completely. Brake shoe material is designed to prevent noise and withstand excessive heat; even so, it’s important to watch your brakes.

Drum brakes have more parts than disc brakes and are a little harder to service. However, they are less expensive to manufacture and easily incorporate an emergency brake mechanism. As the drums wear out, they can become warped and/or grooved. At that point, the drums are unable to dissipate the heat caused by the braking system. This causes the brake fluid to boil and weaken its ability to slow and stop a vehicle. The enclosed, all-in-one design of brake drums makes maintenance and servicing a little easier, as most components are held in place by spring tension. Once the drum is removed, replacing brake shoes on some cars can be accomplished in under 5 minutes.

Buy online or give one of our world-class sales professionals a call at 1-480-966-3040. We look forward to helping you throughout the choosing and buying process. Don’t hesitate; contact us today!  

AC Delco is the premier supplier of GM Original Equipment automotive replacement parts. AC Delco offers 90,000+ auto parts across 37 product lines, and their products can be found around the globe. As a global leader in automotive replacement parts and related services, their focus has always been on building a reputation as the number-one source for quality auto parts. ACDelco provides high-quality parts for all major vehicle systems, as well as off-road, marine and industrial equipment. Their product portfolio includes maintenance parts, such as car batteries, spark plugs, oil filters, air filters, wiper blades, and brakes, as well as repair parts such as alternators, radiators, chassis and heating/cooling components.

Their GM Original Equipment auto parts are the original parts for GM vehicles and meet or exceed GM OE specifications. AC Delco Professional aftermarket auto parts and products cover most GM vehicles as well as many other makes and models. AC Delco Advantage products offer fit, form and function for most makes and models at a more affordable price. For some auto parts, they also offer a Specialty line.

View all AC Delco Brake Drums products

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