Dynamite Friction 631-54008L Disc Brake Rotor - Front Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-54008L) is engineered for reliable braking performance on select Ford and Mercury vehicles. Designed specifically for models like the Mustang, Cougar, and Montego, this vented disc brake rotor offers enhanced heat dissipation and consistent stopping power.

• Disc type: Vented, drilled, and slotted for improved cooling and debris removal
• Nominal thickness: 23.88 mm with a discard thickness of 22.23 mm
• Directional brake surface for optimized braking efficiency
• Rust-resistant zinc silver hat finish with plain disc surface finish
• Five bolt holes with 1/2-20 diameter and 114.3 mm bolt circle diameter
• Overall diameter: 287 mm; height: 107.5 mm; center hole diameter: 61.7 mm

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 reduce heat buildup. This product line is designed to provide directional rotors with vented construction, improving airflow and reducing the risk of brake fade during demanding driving conditions. The zinc silver hat finish adds corrosion resistance, extending rotor life on Ford and Mercury vehicles such as the Mustang, Cougar, and Montego.

Technical Specifications and Features

This rotor features a vented design that allows air to flow between the rotor surfaces, helping to dissipate heat more effectively than solid rotors. The drilled and slotted surface improves water and debris evacuation, maintaining consistent braking performance. The directional surface type ensures the rotor is installed correctly for optimal function. The rotor’s bolt hole diameter of 1/2-20 and five-lug configuration with a 114.3 mm bolt circle diameter matches factory specifications for compatible vehicles.

Applications and Problem Solving

• Replacement rotor for Ford Mustang, Mercury Cougar, and Mercury Montego models
• Addresses brake fade caused by excessive heat during aggressive driving
• Helps reduce brake pad glazing and improves pad bite with slotted and drilled design
• Prevents rust and corrosion with zinc silver hat finish
• Maintains braking performance in wet or debris-prone conditions

Installation Notes and Tips

Ensure the rotor is installed with the directional surface facing the correct rotation direction as indicated by the manufacturer. Verify bolt hole alignment with the vehicle’s hub using the 114.3 mm bolt circle diameter and 1/2-20 bolt hole size. Measure rotor thickness before installation to confirm it exceeds the discard thickness of 22.23 mm. Proper torque specifications should be followed to avoid warping or uneven wear.

Quality Assurance

Dynamite Friction manufactures this rotor to meet or exceed OEM standards for fit, form, and function. The rust-resistant coating on the hat surface helps extend service life. While no specific warranty information is provided, the rotor is designed for durability and consistent braking performance on compatible Ford and Mercury vehicles.