Dynamite Friction 631-54008R Disc Brake Rotor - Front Right

Reliable Performance for Ford and Mercury Vehicles

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

• Disc type: Vented disc brake rotor with drilled and slotted surface
• Nominal thickness: 23.88 mm with discard thickness at 22.23 mm
• Overall diameter: 287 mm with a height of 107.5 mm
• Hat finish: Zinc silver coating for corrosion resistance
• Rust resistant coating applied for extended durability
• Bolt hole quantity: 5 with 1/2-20 bolt hole diameter
• Directional brake surface for optimized performance
• Bolt circle diameter and stud/lug hole circle diameter: 114.3 mm

About 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 improve brake pad bite and heat dissipation. This design helps reduce brake fade and maintain consistent braking under demanding conditions. The zinc silver hat finish and rust resistant coating contribute to longer rotor life, making it suitable for daily driving and spirited use on compatible Ford and Mercury vehicles.

Technical Details and Specifications

This vented rotor features a 287 mm outside diameter and a 107.5 mm overall height, ensuring proper fitment and clearance for the specified vehicles. The rotor’s nominal thickness is 23.88 mm, with a discard thickness of 22.23 mm, indicating when replacement is necessary to maintain safe braking performance. The drilled and slotted surface is directional, designed to channel gases and debris away from the pad surface, improving contact and reducing brake fade. The rotor includes five bolt holes with a 1/2-20 diameter and a bolt circle diameter of 114.3 mm, matching the stud/lug hole circle diameter for secure mounting.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Ford Mustang, Mercury Cougar, and Montego
• Improves heat dissipation to reduce brake fade during aggressive driving
• Helps eliminate brake noise and vibration caused by uneven rotor surfaces
• Restores braking performance compromised by rust or corrosion
• Enhances pad bite and stopping power with drilled and slotted design

Installation Notes and Tips

Ensure the rotor is compatible with your vehicle’s make and model before installation. Clean the hub surface to remove rust or debris for proper rotor seating. Torque lug nuts to manufacturer specifications to avoid rotor warping. Because this rotor features a directional surface, install it according to the indicated rotation direction for optimal performance. Check rotor thickness regularly and replace when it reaches the discard thickness of 22.23 mm.

Quality Assurance and Warranty

Dynamite Friction manufactures this rotor to meet or exceed OEM specifications for fit, form, and function. The rust resistant coating and zinc silver hat finish provide added protection against corrosion, extending the rotor’s service life. While specific warranty details are not provided, Dynamite Friction products typically come with a limited warranty against defects in materials and workmanship. Always consult product documentation or contact the manufacturer for warranty information.