DuraGo BD8946 Brake Drum - Rear

Durable Brake Drum for Ford and Mazda Vehicles

The DuraGo BD8946 brake drum is engineered to provide reliable braking performance for select Ford and Mazda models. Designed with a composite construction featuring cast iron and a steel top, this brake drum meets the demands of vehicles like the Ford Ranger and Mazda B2300.

• Composite construction with cast iron and steel top for strength and durability
• Nominal drum diameter of 10 inches (254 mm) with a maximum discard diameter of 10.09 inches (256.29 mm)
• Five bolt holes with a bolt circle diameter of 4.5 inches (114.3 mm)
• Brake surface width of 2.92 inches (74.2 mm) for consistent braking contact
• Overall height of 3.64 inches (92.5 mm) and center hole diameter of 2.54 inches (64.5 mm)

Technical Details and Specifications

The BD8946 brake drum is constructed from a composite material combining cast iron with a steel top, providing a balance of durability and heat dissipation. It features a nominal drum diameter of 10 inches (254 mm) and an outside diameter of 11.69 inches (297 mm). The brake surface width measures 2.92 inches (74.2 mm), ensuring adequate contact area for brake shoes. This brake drum includes five bolt holes with a diameter of 0.57 inches (14.5 mm) arranged on a 4.5-inch (114.3 mm) bolt circle diameter. The overall height is 3.64 inches (92.5 mm), and the center hole diameter is 2.54 inches (64.5 mm). Note that this brake drum does not include an ABS tone ring or outer cooling fins, and it does not have a rust-resistant coating.

Compatible Vehicles and Applications

This DuraGo BD8946 brake drum is compatible with several Ford and Mazda models, including:

• Ford Aerostar
• Ford Ranger
• Mazda B2300
• Mazda B3000
• Mazda B4000

It is designed to meet the specific brake system requirements of these vehicles, ensuring proper fit and function.

Common Issues Addressed by This Brake Drum

• Worn or scored brake drums causing uneven braking
• Brake drum diameter exceeding maximum discard limits
• Brake noise or vibration due to damaged drums
• Reduced braking efficiency from surface wear
• Replacement of original equipment brake drums for maintenance

Installation Notes and Tips

When installing the DuraGo BD8946 brake drum, ensure the brake shoes and hardware are inspected and replaced if necessary. Verify that the drum diameter does not exceed the maximum discard limit of 10.09 inches (256.29 mm). Proper cleaning of the hub and mounting surfaces is recommended to ensure a secure fit. 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 manufactures the BD8946 brake drum to meet industry standards for durability and performance. While this product does not include a rust-resistant coating, its composite construction supports long service life under normal operating conditions. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.