Dynamite Friction 631-47090R Disc Brake Rotor - Rear Right

Overview of DFC Brake Rotor - Drilled and Slotted - Silver

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-47090R) is engineered for reliable braking performance on Chevrolet Express 3500 and GMC Savana 3500 models. Designed with a directional slotted and drilled surface, this rotor enhances heat dissipation and braking consistency under demanding conditions.

• Directional slotted and drilled surface for improved heat management
• Nominal thickness of 42 mm with a discard thickness of 40 mm
• Rust-resistant zinc silver hat finish for extended durability
• Eight bolt holes with 16.4 mm diameter and 165 mm bolt circle diameter
• Outside diameter of 334 mm and height of 147.5 mm
• Center hole diameter of 123.2 mm for precise fitment
• Plain disc finish with eight stud/lug holes

Detailed Product Description

The DFC Brake Rotor - Drilled and Slotted - Silver from Dynamite Friction is specifically designed for heavy-duty applications on Chevrolet Express 3500 and GMC Savana 3500 vehicles. The rotor features a directional surface with both drilled holes and slots, which work together to reduce brake fade by allowing gases and debris to escape while maintaining consistent pad contact. The nominal thickness of 42 mm ensures structural integrity, while the discard thickness of 40 mm indicates when replacement is necessary to maintain safe braking performance.

The rotor’s zinc silver hat finish provides a rust-resistant coating that helps protect against corrosion, extending the rotor’s service life. With eight bolt holes measuring 16.4 mm in diameter and a bolt circle diameter of 165 mm, this rotor is engineered for a secure and precise fit. The 334 mm outside diameter and 147.5 mm height are optimized for the braking system of the specified Chevrolet and GMC models.

DFC Brake Rotor - Drilled and Slotted - Silver Product Line

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on rotors that combine drilled holes and slots with a silver zinc coating for rust resistance. This product line is designed to provide enhanced braking performance and durability for trucks and vans requiring reliable stopping power under load. The drilled and slotted design is directional, ensuring optimal airflow and heat dissipation tailored to the braking dynamics of vehicles like the Chevrolet Express 3500 and GMC Savana 3500.

Applications and Problem Solving

• Reduces brake fade during heavy braking or towing
• Improves heat dissipation to prevent rotor warping
• Minimizes rust and corrosion on the rotor surface
• Maintains consistent braking performance under load
• Ensures proper fitment for Chevrolet Express 3500 and GMC Savana 3500

Installation Notes and Tips

• Verify rotor thickness before installation; replace if below 40 mm discard thickness
• Ensure proper alignment with eight bolt holes and 165 mm bolt circle diameter
• Clean mounting surface to prevent uneven rotor seating
• Use compatible brake pads designed for drilled and slotted rotors
• Torque lug nuts to manufacturer specifications for secure fitment

Quality Assurance

Dynamite Friction manufactures the 631-47090R rotor to meet industry standards for durability and performance. The rust-resistant zinc silver coating and precise machining ensure long service life and reliable braking. While no specific warranty information is provided, this rotor is built to maintain consistent braking performance for Chevrolet Express 3500 and GMC Savana 3500 vehicles when installed and maintained properly.