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Brake Rotors & GM OE Rotors | ACDelco

ACDelco GM Original Equipment Brake Drums are cylinder-shaped bowls where the wheel cylinder presses the brake shoes outward against the inside of the drum. Drums are typically found on older vehicles and on the rear axles of trucks and some cars. These original-equipment brake drums are engineered to fit your specific GM vehicle and provide the same performance, durability and service life as your factory-original equipment.


Find out more about ACDelco GM OE Drums and how they fit into the braking system with the product facts below.


To slow the rotation of the wheel when the brake shoes contact its surface.

Features & Benefits:

  • Inspected for balance, resulting in smooth brake operation and noise reduction
  • Have a rust-preventative coating to help protect against corrosion
  • GM-recommended replacement part for your GM vehicle's original factory component
  • Offering the quality, reliability and durability of GM OE
  • Manufactured to GM OE specification for fit, form and function


Signs of Wear & Troubleshooting:

Brake Drum signs of wear include:

  • Reduced braking force.
  • Low brake-pedal height.
  • Increased stopping distances.
  • Squealing or scraping noises.
  • Brake-pedal pulsation (not to be confused with normal ABS operation).


Did You Know?

When you step on your brake pedal, you command a stopping force 10 times as powerful as the force that puts the car in motion. The brakes system can exert as much as 1,000 pounds (450 kg) of hydraulic pressure on each of the four brakes.

What It Does:

The Brake System applies frictional force to the wheels to slow or stop the vehicle.

Good Maintenance Practices:

The following inspections and maintenance procedures can help prevent potential brake problems:

  • Check brake fluid level at every oil change. Replace fluid according to Owner's Manual recommendations.
  • Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
  • Inspect the brake lines for rust, punctures or visible leaks (you may be able to do this, but consult a qualified technician if necessary).
  • Check the thickness of your brake pads.

The following should be conducted by a qualified technician:

  • Inspection of the brake hoses for brittleness or cracking.
  • Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
  • Inspection of wheel bearings and grease seals.
  • Parking brake adjustments (as needed).

Limited Warranty:

12 Months/12,000 Miles*

*Whichever comes first. To the original purchaser. Parts only; installation not included. See your local retailer or Independent Service Center that offers ACDelco parts for details.

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