DuraGo BD8985 Brake Drum - Rear

Durable Brake Drum for Chevrolet and GMC Vehicles

The DuraGo BD8985 brake drum is engineered to provide reliable braking performance for select Chevrolet and GMC models. Designed with a composite construction featuring cast iron and a steel top, this brake drum offers durability and consistent operation for your vehicle's braking system.

• Composite construction with cast iron and steel top for strength
• Outside diameter of 13.48 inches (342.4 mm) for precise fitment
• Nominal drum diameter of 11.15 inches (283.2 mm) ensuring proper brake engagement
• Brake surface width of 3.27 inches (83.1 mm) for effective braking surface
• Six bolt holes with a 5.5-inch (139.7 mm) bolt circle diameter for secure mounting
• Outer cooling fins to aid in heat dissipation during braking
• Compatible with Chevrolet Blazer, GMC Jimmy, K5 Blazer, K1500 Suburban, and V1500 Suburban models

Technical Details and Construction

The BD8985 brake drum features a composite design combining cast iron with a steel top layer, providing a balance of durability and heat resistance. Its 13.48-inch outside diameter and 11.15-inch nominal drum diameter are engineered to match the original equipment specifications for the Chevrolet Blazer and GMC Jimmy series, including the K5 Blazer and Suburban models. The brake surface width of 3.27 inches ensures sufficient contact area for brake shoes, while the six bolt holes with a 5.5-inch bolt circle diameter allow for secure and precise installation. Outer cooling fins are integrated into the design to help dissipate heat generated during braking, reducing the risk of brake fade under demanding conditions.

Compatible Vehicles and Applications

This brake drum is specifically compatible with the following vehicles:

• Chevrolet Blazer
• GMC Jimmy
• Chevrolet K5 Blazer
• Chevrolet K1500 Suburban
• GMC V1500 Suburban

It is designed to replace worn or damaged brake drums, restoring proper braking function and safety.

Common Issues Addressed by the DuraGo BD8985 Brake Drum

• Brake noise caused by worn or warped drums
• Reduced braking efficiency due to uneven drum surfaces
• Brake pulsation from out-of-round drums
• Excessive brake dust and wear from damaged drums
• Overheating and brake fade during heavy braking

Installation Notes and Tips

When installing the DuraGo BD8985 brake drum, ensure the mating surfaces are clean and free of rust or debris. Verify the bolt hole alignment with the vehicle’s hub and torque bolts to manufacturer specifications. It is recommended to inspect brake shoes and hardware during installation and replace any worn components to maintain optimal braking performance. Since this brake drum does not include an ABS tone ring, confirm compatibility with your vehicle’s ABS system if applicable.

Quality Assurance and Warranty

DuraGo brake drums are manufactured to meet or exceed OEM standards for fit, form, and function. The BD8985 part undergoes rigorous quality control to ensure durability and consistent braking performance. While specific warranty details may vary, DuraGo typically offers a limited warranty against defects in materials and workmanship. Refer to the product documentation for exact warranty terms.