Dynamite Friction 631-48040R Disc Brake Rotor - Rear Right

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-48040R) 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 combines durability with enhanced heat dissipation.

• Drilled and slotted surface for improved heat and gas dissipation
• Vented disc design to reduce brake fade under heavy loads
• Rust-resistant zinc silver hat finish for extended corrosion protection
• Directional brake surface optimized for consistent braking performance
• Compatible with 8-lug bolt pattern and 16.5 mm bolt hole diameter
• Nominal thickness of 29 mm with discard thickness at 27 mm
• Overall diameter of 330 mm and height of 91.5 mm

Detailed Product Features and Specifications

This DFC Brake Rotor - Drilled and Slotted - Silver is a vented disc brake rotor featuring a directional surface with both drilled holes and slots. The drilled holes help dissipate heat and gases generated during braking, while the slots assist in removing brake dust and water from the rotor surface. The rotor’s nominal thickness is 29 mm, with a discard thickness of 27 mm, ensuring a long service life before replacement is necessary. The zinc silver coating on the rotor hat provides rust resistance, which is essential for vehicles exposed to harsh weather conditions.

The rotor measures 330 mm in outside diameter and 91.5 mm in height, designed to fit vehicles with an 8-lug bolt pattern and a bolt circle diameter of 165.1 mm. The center hole diameter is 122.8 mm, and the bolt hole diameter is 16.5 mm, matching the specifications required for Chevrolet and GMC heavy-duty trucks and vans.

DFC Brake Rotor - Drilled and Slotted - Silver Product Line

The DFC Brake Rotor - Drilled and Slotted - Silver line from Dynamite Friction focuses on providing rotors with enhanced cooling and braking efficiency through drilled and slotted surfaces. This product line is tailored for heavy-duty applications, offering vented rotors with rust-resistant coatings to maintain performance and durability over time. The silver zinc finish on the rotor hat adds corrosion protection, making it suitable for demanding environments and extended use on Chevrolet and GMC trucks and vans.

Compatible Vehicles and Applications

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

Common Issues Addressed by This Rotor

• Brake fade caused by excessive heat during heavy towing or hauling
• Corrosion and rust buildup on rotor hats and surfaces
• Uneven brake pad wear due to poor heat dissipation
• Brake noise and vibration from glazed or warped rotors
• Reduced braking efficiency in wet or dusty conditions

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (27 mm) before installation
• Clean mounting surface and hub to prevent rotor runout
• Use proper torque specifications for 8-lug bolts with 16.5 mm diameter
• Check compatibility with vehicle’s brake caliper and hardware
• Perform a bed-in procedure after installation for optimal braking performance

Quality Assurance and Warranty

Dynamite Friction manufactures the 631-48040R rotor to meet or exceed OEM specifications for fit, form, and function. The rust-resistant coating and vented design contribute to long-term durability. While specific warranty details are not provided, Dynamite Friction products typically come with a limited warranty against defects in materials and workmanship. Always verify warranty terms with the supplier or manufacturer.