Dynamite Friction 631-48040L Disc Brake Rotor - Rear Left

Overview of the DFC Brake Rotor - Drilled and Slotted - Silver

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-48040L) is engineered for reliable braking performance on heavy-duty Chevrolet and GMC trucks and vans. Designed specifically for models like the Silverado 2500 HD and Sierra 3500 HD, this rotor offers enhanced heat dissipation and consistent stopping power.

• Disc type: Vented disc brake rotor with drilled and slotted surface
• Nominal thickness: 29 mm with discard thickness at 27 mm
• Overall height: 91.5 mm and outside diameter: 330 mm
• Directional brake surface for optimized performance
• Rust resistant zinc silver hat finish with plain disc finish
• Eight bolt holes with 16.5 mm diameter and 165.1 mm bolt circle diameter
• Compatible with Chevrolet and GMC heavy-duty trucks and vans

Detailed Product Description

The DFC Brake Rotor - Drilled and Slotted - Silver from Dynamite Friction is a vented rotor designed to improve braking efficiency by allowing better heat dissipation through its drilled and slotted surface. The directional surface pattern helps channel gases and debris away from the contact area, reducing brake fade during demanding driving conditions. The rotor features a nominal thickness of 29 mm and a discard thickness of 27 mm, ensuring a long service life before replacement is necessary. Its zinc silver coated hat finish provides corrosion resistance, maintaining structural integrity and appearance over time. With eight bolt holes sized at 16.5 mm and a bolt circle diameter of 165.1 mm, this rotor fits securely on compatible Chevrolet and GMC models.

Compatible Vehicles and Applications

This rotor is compatible with a range of Chevrolet and GMC heavy-duty trucks and vans, including:

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

Common Issues Addressed by This Rotor

• Brake fade caused by excessive heat buildup during heavy towing or hauling
• Uneven brake pad wear due to poor rotor surface design
• Corrosion and rust on rotor hats reducing lifespan
• Reduced braking performance from warped or worn rotors
• Brake noise and vibration from glazed or damaged rotors

Installation Notes and Tips

Ensure the rotor surface and hub are clean and free of debris before installation. Verify the rotor thickness is above the discard thickness of 27 mm to maintain safety standards. Use proper torque specifications for the eight 16.5 mm bolt holes to secure the rotor firmly. The directional drilled and slotted surface must be installed following the correct rotation direction for optimal performance. It is recommended to inspect brake pads and replace if worn when installing new rotors.

Quality Assurance and Warranty

Dynamite Friction manufactures the DFC Brake Rotor - Drilled and Slotted - Silver to meet or exceed OEM specifications for Chevrolet and GMC heavy-duty vehicles. The rotor includes a rust-resistant zinc silver coating on the hat to extend service life. While specific warranty details are not provided, Dynamite Friction products are generally backed by quality control standards to ensure durability and consistent braking performance.