Dynamite Friction 631-42031R Disc Brake Rotor - Front Right

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-42031R) is engineered for reliable braking performance on 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.

• Nominal thickness: 32.76 mm
• Discard thickness: 30.86 mm
• Outside diameter: 301 mm
• Vented, drilled and slotted surface for improved cooling
• Zinc silver hat finish with rust-resistant coating
• 6 bolt holes with 15.1 mm diameter and 139.7 mm bolt circle diameter
• Directional brake surface for optimized pad contact

DFC Brake Rotor - Drilled and Slotted - Silver Product Line Details

The DFC Brake Rotor - Drilled and Slotted - Silver line from Dynamite Friction focuses on rotors that combine drilled holes and slots on a vented disc design. This configuration helps reduce brake fade by improving heat dissipation and gas evacuation during braking. The zinc silver hat finish and rust-resistant coating extend rotor life by protecting against corrosion, making it suitable for vehicles exposed to varied driving conditions.

Technical Description and Specifications

This disc brake rotor features a nominal thickness of 32.76 mm and a discard thickness of 30.86 mm, ensuring a durable lifespan before replacement is necessary. The rotor’s 301 mm outside diameter and 58.7 mm overall height fit specific Chevrolet, GMC, and Jeep models, including the K5 Blazer and Grand Wagoneer. The vented rotor design improves airflow to reduce heat buildup, while the drilled and slotted surface enhances braking performance by allowing gases and debris to escape. The rotor’s directional surface ensures optimal pad contact and braking efficiency. The zinc silver hat finish combined with a rust-resistant coating protects the rotor from corrosion, maintaining performance over time.

Compatible Vehicles and Applications

• Chevrolet Blazer, K5 Blazer, K10, K10 Suburban, K1500, K1500 Suburban, V10, V10 Suburban, V1500, V1500 Suburban
• GMC Jimmy, J10, Wagoneer, Grand Wagoneer
• Jeep Cherokee

This rotor is designed for use in disc brake systems requiring a 6-lug bolt pattern with a 139.7 mm bolt circle diameter and 15.1 mm bolt hole diameter.

Common Issues Addressed by This Rotor

• Brake fade caused by excessive heat buildup
• Uneven brake pad wear due to poor rotor surface design
• Corrosion and rust on rotor surfaces reducing braking efficiency
• Brake noise and vibration from warped or worn rotors
• Reduced braking performance in wet or harsh conditions

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (30.86 mm) before installation
• Clean rotor surface and hub mounting area to prevent uneven contact
• Use proper torque specifications for the 6 lug bolts (15.1 mm diameter)
• Check compatibility with vehicle’s brake caliper and hardware
• Inspect brake pads for wear and replace if necessary during rotor installation

Quality Assurance and Warranty

Dynamite Friction manufactures the 631-42031R rotor to meet or exceed OEM specifications for fit, form, and function. The rust-resistant coating and zinc silver hat finish contribute to long-term durability. Warranty details should be confirmed with the product documentation or manufacturer, as coverage may vary by application and region.