DuraGo BD80118 Brake Drum - Rear

Overview of DuraGo BD80118 Brake Drum

The DuraGo BD80118 brake drum is engineered for reliable braking performance on Chevrolet and GMC trucks. Designed specifically for models like the Sierra 1500, Sierra 1500 Classic, Silverado 1500, and Silverado 1500 Classic, this cast iron brake drum meets precise fitment requirements for these vehicles.

• Constructed from durable cast iron for strength and heat resistance
• Nominal drum diameter of 11.61 inches (295 mm) with a maximum discard diameter of 11.67 inches (296.5 mm)
• Outside diameter measures 13.2 inches (335.2 mm) ensuring proper fitment
• Brake surface width of 2.99 inches (75.9 mm) for consistent braking contact
• Features 6 bolt holes with a bolt circle diameter of 5.5 inches (139.7 mm)
• Center hole diameter of 3.1 inches (78.7 mm) for accurate mounting
• Full cast construction without ABS tone ring or cooling fins

Detailed Product Description

The DuraGo BD80118 brake drum is a full cast iron component designed to provide consistent braking performance for Chevrolet and GMC full-size pickup trucks. Its precise dimensions, including a nominal drum diameter of 11.61 inches and an outside diameter of 13.2 inches, ensure compatibility with the braking systems of the Sierra 1500 and Silverado 1500 series. The brake surface width of nearly 3 inches allows for effective brake shoe contact, contributing to reliable stopping power. This brake drum does not include an ABS tone ring or outer cooling fins, making it suitable for vehicles without ABS sensors integrated into the drum assembly. The 6-bolt hole configuration with a 5.5-inch bolt circle diameter matches factory specifications for secure installation.

Compatible Vehicles and Applications

• Chevrolet Sierra 1500 (including Classic models)
• Chevrolet Silverado 1500 (including Classic models)
• GMC Sierra 1500 (including Classic models)

This brake drum is intended for use in rear drum brake assemblies on these specific truck models, providing a direct replacement for worn or damaged drums.

Common Issues Addressed by This Brake Drum

• Brake noise or vibration caused by worn or out-of-round drums
• Reduced braking efficiency due to surface wear or scoring
• Brake fade from overheated or damaged drums
• Uneven brake shoe contact resulting in pulling or grabbing
• Corrosion or cracking compromising drum integrity

Installation Notes and Tips

• Ensure the brake drum matches the vehicle’s specifications before installation
• Inspect brake shoes and hardware for wear and replace as necessary
• Measure drum diameter to confirm it is within discard limits (max 11.67 inches)
• Clean mounting surfaces and lubricate contact points to prevent noise
• Torque wheel lug nuts to manufacturer specifications after installation

Quality Assurance and Warranty

DuraGo brake drums are manufactured to meet OEM standards for fit and function. The BD80118 part number undergoes quality checks to ensure dimensional accuracy and material integrity. While specific warranty details may vary, DuraGo typically offers coverage against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.