Dynamite Friction 631-40051L Disc Brake Rotor - Front Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-40051L) is engineered for reliable braking performance on heavy-duty trucks. Designed specifically for Chevrolet, Dodge, and GMC models including K30, K3500, V30, V3500, W250, and W350, this rotor offers enhanced heat dissipation and consistent stopping power.

• Drilled and slotted vented disc brake rotor for improved cooling
• Directional brake surface to optimize braking efficiency
• Rust-resistant zinc silver hat finish for durability
• Nominal thickness of 38.99 mm with discard thickness at 37.21 mm
• Eight bolt holes with 17.7 mm diameter for secure fitment
• Overall diameter of 327 mm and height of 78.2 mm
• Plain disc finish with vented rotor design to reduce brake fade

Details on the DFC Brake Rotor - Drilled and Slotted - Silver Line

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on rotors that combine drilled holes and slots to enhance brake pad bite and heat dissipation. This product line is designed to maintain braking performance under demanding conditions, making it suitable for heavy-duty trucks like the Chevrolet K3500 and GMC V3500. The silver zinc coating on the rotor hat provides corrosion resistance, extending the rotor's service life.

Technical Specifications and Features

This vented disc brake rotor features a directional surface type with both drilled holes and slots, which help to evacuate gases and debris from the braking surface. The rotor measures 327 mm in outside diameter and 78.2 mm in height, with a center hole diameter of 127.2 mm. It includes eight bolt holes, each 17.7 mm in diameter, arranged on a 165.1 mm bolt circle diameter, ensuring compatibility with specified Chevrolet, Dodge, and GMC truck models. The nominal thickness is 38.99 mm, with a discard thickness of 37.21 mm, indicating when the rotor should be replaced to maintain safe braking performance.

Applications and Problem Solving

• Replacement rotor for worn or warped brake rotors on Chevrolet K30 and K3500 trucks
• Improves heat dissipation to reduce brake fade during heavy towing or hauling
• Addresses brake noise and vibration issues caused by uneven rotor surfaces
• Prevents rust and corrosion on the rotor hat with zinc silver coating
• Enhances braking response on Dodge V30 and GMC W3500 models with directional drilled and slotted design

Installation Notes and Tips

Ensure the rotor is installed on compatible Chevrolet, Dodge, or GMC models as specified. Verify bolt hole alignment with the vehicle’s hub using the 8-bolt pattern and 17.7 mm bolt hole diameter. Clean the rotor surface before installation to remove any protective coatings or debris. Check rotor thickness regularly and replace when it reaches the discard thickness of 37.21 mm to maintain optimal braking performance.

Quality Assurance

Dynamite Friction manufactures the 631-40051L rotor to meet industry standards for durability and performance. The rust-resistant zinc silver finish on the rotor hat helps extend service life by protecting against corrosion. While no specific warranty information is provided, this rotor is designed for heavy-duty use on Chevrolet, Dodge, and GMC trucks, ensuring consistent braking reliability when properly maintained.