DuraGo BD8949 Brake Drum - Rear

Durable Brake Drum for Chevrolet Astro and GMC Safari

The DuraGo BD8949 brake drum is engineered to provide reliable braking performance for Chevrolet Astro and GMC Safari vehicles. Constructed with a composite design featuring cast iron and a steel top, this brake drum offers durability and consistent operation under various driving conditions.

• Material: Cast iron with steel top for strength and heat resistance
• Outside Diameter: 11.81 inches (300 mm) for precise fitment
• Nominal Drum Diameter: 9.5 inches (241.3 mm)
• Brake Surface Width: 2.48 inches (63 mm) for effective braking contact
• Bolt Hole Quantity: 5 with 0.53 inch (13.5 mm) diameter holes
• Bolt Circle Diameter: 5 inches (127 mm) ensuring proper mounting
• Outer Cooling Fins included to aid heat dissipation
• Overall Height: 3.15 inches (79.9 mm)
• ABS Tone Ring: Not included

Technical Details and Construction

The BD8949 brake drum features a composite construction combining cast iron and a steel top layer, designed to withstand the thermal stresses generated during braking. Its 5-bolt hole pattern with a 5-inch bolt circle diameter matches the factory specifications for Chevrolet Astro and GMC Safari models. The inclusion of outer cooling fins helps reduce heat buildup, which can improve brake performance and longevity. Although this brake drum does not include a rust-resistant coating, its robust material composition supports durability in typical driving environments.

Compatible Vehicles and Applications

This brake drum is specifically compatible with Chevrolet Astro and GMC Safari vehicles, ensuring a precise fit and reliable braking function. The DuraGo BD8949 is suitable for addressing common brake system issues such as:

• Brake noise or vibration caused by worn or warped drums
• Reduced braking efficiency due to drum surface wear
• Brake pulsation resulting from uneven drum surfaces
• Excessive brake dust or contamination on drum surfaces
• Brake fade from overheating during extended use

Installation Notes and Tips

When installing the DuraGo BD8949 brake drum, ensure the mating surfaces are clean and free of debris. Verify the bolt hole alignment with the vehicle’s hub assembly and torque bolts to manufacturer specifications. It is recommended to inspect brake shoes and hardware during installation 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 BD8949 part number undergoes rigorous quality control to ensure consistent performance and durability. While no specific rust-resistant coating is applied, the composite construction supports long-term use. Warranty coverage details should be confirmed through the product documentation or manufacturer.