Dynamite Friction 631-46009L Disc Brake Rotor - Rear Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-46009L) is engineered for reliable braking performance on Cadillac and Chevrolet vehicles, specifically the Corvette and XLR models. This vented disc brake rotor features a directional, slotted, and drilled surface designed to enhance heat dissipation and maintain consistent stopping power.

• Compatible with Cadillac Corvette and Chevrolet XLR
• Part Number: 631-46009L
• Vented disc brake rotor with drilled and slotted surface
• Nominal thickness: 26 mm; discard thickness: 24 mm
• Rust-resistant zinc silver hat finish
• Directional brake surface for optimized performance
• 5 bolt holes with 13.5 mm diameter and 120.6 mm bolt circle diameter
• Overall diameter: 305 mm; height: 48.4 mm

Detailed Product Description

This Dynamite Friction rotor is part of the DFC Brake Rotor - Drilled and Slotted - Silver line, which focuses on providing enhanced braking efficiency through improved heat management and surface design. The rotor’s vented construction allows for better airflow, reducing the risk of brake fade during demanding driving conditions. The drilled and slotted surface helps evacuate gases, dust, and water, maintaining consistent pad contact and braking response.

The rotor features a plain disc finish combined with a zinc silver coating on the hat to resist rust and corrosion, extending the rotor’s service life. With a nominal thickness of 26 mm and a discard thickness of 24 mm, this rotor meets precise wear specifications to ensure safe replacement intervals. The directional surface design is optimized for the specified bolt pattern and fitment, ensuring proper installation and performance on Cadillac Corvette and Chevrolet XLR models.

Applications and Problem Solving

• Improves braking performance on Cadillac Corvette and Chevrolet XLR vehicles
• Reduces brake fade during high-temperature conditions
• Minimizes rotor warping and cracking through vented design
• Helps maintain consistent pad contact with slotted and drilled surface
• Protects against rust and corrosion with zinc silver hat finish

Installation Notes and Tips

Ensure the rotor is installed with the directional surface oriented correctly according to the vehicle’s rotation. Verify bolt hole alignment with the 5-lug, 13.5 mm diameter holes and 120.6 mm bolt circle diameter. Measure rotor thickness before installation to confirm it meets or exceeds the discard thickness of 24 mm. Proper torque specifications should be followed to avoid rotor damage or uneven wear.

Quality Assurance

Dynamite Friction manufactures this rotor to meet OEM standards for fitment and durability. The rust-resistant coating and vented design contribute to long-term reliability. Please consult vehicle service manuals for specific maintenance intervals. Warranty information is available through the manufacturer and should be referenced for coverage details.