Dynamite Friction 631-42031L Disc Brake Rotor - Front Left

Overview of DFC Brake Rotor - Drilled and Slotted - Silver

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-42031L) is engineered for reliable braking performance on select Chevrolet, GMC, and Jeep vehicles. Designed with a vented, directional surface, this rotor enhances heat dissipation and braking consistency for models like the Chevrolet Blazer and Jeep Cherokee.

• Vented disc brake rotor with drilled and slotted surface
• Nominal thickness of 32.76 mm and discard thickness of 30.86 mm
• Directional braking surface for optimized pad contact
• Rust-resistant zinc silver hat finish with plain disc finish
• 6 bolt holes with 15.1 mm diameter and 139.7 mm bolt circle diameter
• Overall diameter of 301 mm and height of 58.7 mm
• Compatible with Chevrolet, GMC, and Jeep models including Blazer, Cherokee, Grand Wagoneer, and more

Product Line Details

The DFC Brake Rotor - Drilled and Slotted - Silver line from Dynamite Friction focuses on rotors that combine drilled holes and slots to improve brake pad bite and aid in heat and gas dissipation. This design helps maintain consistent braking performance under demanding conditions. The silver zinc coating on the rotor hat provides corrosion resistance, extending the rotor's service life on vehicles such as the GMC K1500 and Jeep Wagoneer.

Technical Description and Specifications

This disc brake rotor features a vented design with a 301 mm outside diameter and a 58.7 mm overall height, allowing for effective heat management during braking. The rotor’s surface is both drilled and slotted, which helps reduce brake fade by allowing gases and debris to escape. The rotor is directional, ensuring proper installation orientation for optimal performance. It includes six bolt holes with a 15.1 mm diameter and a bolt circle diameter of 139.7 mm, matching the stud/lug hole pattern for secure mounting. The zinc silver hat finish offers rust resistance, while the plain disc finish supports consistent pad wear.

Applications and Problem Solving

• Replacement rotor for worn or warped rotors on Chevrolet Blazer and GMC K10 Suburban
• Improves braking response and reduces brake fade on Jeep Grand Wagoneer and Cherokee
• Addresses rotor corrosion issues with rust-resistant coating
• Enhances heat dissipation to prevent brake overheating in heavy-duty use
• Compatible upgrade for vehicles experiencing uneven pad wear or noise

Installation Notes and Tips

• Ensure rotor orientation matches the directional surface marking for proper function
• Check bolt hole alignment with vehicle hub using the 139.7 mm bolt circle diameter
• Verify rotor thickness before installation; replace if below discard thickness of 30.86 mm
• Use proper torque specifications on the 6 lug nuts to avoid rotor warping
• Inspect brake pads and hardware during rotor replacement for optimal braking system performance

Quality Assurance and Warranty

Dynamite Friction manufactures the 631-42031L rotor to meet or exceed OEM specifications for fit and function on Chevrolet, GMC, and Jeep vehicles. The rust-resistant coating and vented design contribute to durability and consistent braking performance. Warranty details should be confirmed with the point of purchase or manufacturer documentation.