DuraGo BR55055-01 Disc Brake Rotor - Rear

Durable Cast Iron Disc Brake Rotor for Chevrolet and GMC

The DuraGo BR55055-01 disc brake rotor is engineered for reliable braking performance on heavy-duty Chevrolet and GMC trucks and vans. Designed with a full cast iron construction and rust-resistant coating, this rotor offers durability and consistent stopping power for vehicles like the Silverado 2500 HD and Sierra 3500 HD.

• Material: Full cast iron for strength and heat dissipation
• Rust-resistant coating to reduce corrosion
• Vented rotor design for improved cooling
• Drum-in-hat construction with 8 mounting bolt holes
• Non-directional brake surface for versatile installation
• Outside diameter: 12.99 inches (330 mm)
• Nominal thickness: 1.14 inches (29 mm)
• Discard thickness: 1.06 inches (27 mm)
• Overall height: 3.64 inches (92.5 mm)
• Center hole diameter: 4.84 inches (122.9 mm)

Technical Details and Construction

The BR55055-01 rotor features a vented design that enhances heat dissipation during braking, helping to maintain consistent performance under heavy loads. Its full cast iron construction provides the necessary strength and thermal stability required for demanding applications. The rotor includes a drum-in-hat design, integrating the parking brake drum into the rotor assembly, which is common for many Chevrolet and GMC 2500 and 3500 series trucks and vans. The rust-resistant coating helps protect the rotor surface from corrosion, extending service life in various driving conditions.

Compatible Vehicles and Applications

This disc brake rotor is compatible with a range of Chevrolet and GMC heavy-duty models, including:

• Chevrolet Silverado 2500, 2500 HD, 3500, and 3500 HD series
• Chevrolet Avalanche 2500
• Chevrolet Suburban 2500
• GMC Sierra 2500, 2500 HD, 3500, and 3500 HD series
• GMC Yukon XL 2500
• Chevrolet and GMC Express 2500 and 3500 vans
• Chevrolet and GMC Savana 2500 and 3500 vans

Common Issues Addressed by This Rotor

• Brake rotor warping or uneven wear causing vibration
• Corrosion and rust buildup reducing braking efficiency
• Insufficient heat dissipation leading to brake fade
• Worn or damaged parking brake drum integration
• Rotors below discard thickness affecting safety

Installation Notes and Tips

Ensure the rotor surface is clean and free of debris before installation. Verify the mounting bolt hole pattern matches your vehicle’s hub assembly (8 holes, 16.5 mm diameter). Since this rotor does not include an ABS tone ring, confirm compatibility with your vehicle’s ABS system. Proper torque specifications should be followed when securing the rotor to avoid warping. It is recommended to replace brake pads simultaneously to ensure optimal braking performance.

Quality Assurance and Warranty

DuraGo disc brake rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The BR55055-01 rotor undergoes rigorous quality control to ensure durability and consistent braking performance. While specific warranty details are not provided here, DuraGo products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.