PowerStop AD8803P Brake Drum - Rear

Rear OE Replacement Brake Drum for Silverado and Sierra

PowerStop AD8803P is a rear brake drum built as a direct bolt-on replacement for factory equipment. It is manufactured to original equipment specifications for fit, weight, and performance, with a coated surface that helps protect against rust and corrosion.

Compatible with rear brake applications on 2005-2008 Chevrolet Silverado 1500, 2005-2008 GMC Sierra 1500, 2007 Chevrolet Silverado 1500 Classic, and 2007 GMC Sierra 1500 Classic.

Key Features

• Cast iron brake drum construction
• Rust resistant coating for added surface protection
• Direct OE stock replacement fitment
• Built to original equipment specifications
• Inside diameter: 11.60 in. / 295.00 mm
• Maximum brake diameter discard: 11.70 in. / 296.50 mm
• Outside diameter: 13.20 in. / 335.00 mm
• 6-bolt hole design

Product Details

Power Stop’s Autospecialty High Temp Coated Brake Drum line focuses on OE-style replacement parts for drivers who want factory-correct fitment and dependable braking performance. The AD8803P rear drum follows original equipment dimensions and mounting requirements, making it a practical choice for Silverado 1500 and Sierra 1500 rear brake service. The coated finish helps resist rust and corrosion, which is especially useful in wet or road-salt environments.

This part cross-references Centric Parts 122.66044 for the same application.

Common Brake Drum Issues It Can Address

• Rear brake drum wear that affects braking consistency
• Rust buildup on the drum surface
• Out-of-spec drum diameter during brake service
• Brake pulsation or noise related to drum condition
• Fitment problems from non-OE replacement parts

Installation Notes and Tips

Verify rear axle brake drum dimensions before installation and compare the drum to the original part. Clean the hub and surrounding brake components before mounting the new drum, and confirm the 6-bolt hole pattern matches the vehicle application. For best results, inspect rear shoes and related hardware during brake service.

Quality Assurance

PowerStop manufactures this brake drum to original equipment specifications for fitment, weight, and performance. The coated surface adds corrosion protection for long-term service in rear brake applications on Chevrolet Silverado 1500 and GMC Sierra 1500 models.