Dynamite Friction 4002-48021 Disc Brake Rotor Set - Rear

Rear Brake Rotor Set for Heavy-Duty GM Applications

The Dynamite Friction DFC Brake Rotors - GEOSPEC Coated rear disc brake rotor set, part number 4002-48021, is built for a wide range of Chevrolet and GMC trucks, vans, and SUVs. It covers rear brake service on applications such as Chevrolet Silverado 2500 HD, GMC Sierra 2500 HD, Chevrolet Express 3500, and GMC Savana 3500.

Key Features

• Rear disc brake rotor set for GM truck, van, and SUV applications
• GEOSPEC coated finish for added corrosion resistance on exposed rotor surfaces
• Direct-fit coverage for many 1999-2020 Chevrolet and GMC rear brake applications
• Fits single rear wheel, heavy-duty, and specific hub-hole configurations where noted
• Part number 4002-48021 for ordering and fitment verification

Product Line Details

DFC Brake Rotors - GEOSPEC Coated is Dynamite Friction’s coated rotor line for drivers who want a service replacement rotor with a protective surface treatment. The coating helps reduce rust on non-friction areas while keeping the braking surface ready for pad contact after proper break-in.

Detailed Description

This rear rotor set is engineered for direct replacement on a broad list of GM platforms, including Chevrolet Silverado 2500, Silverado 2500 HD, Silverado 3500, Silverado 3500 HD, Express 2500, Express 3500, Suburban 2500, Avalanche 2500, and GMC Sierra 2500, Sierra 2500 HD, Sierra 3500, Sierra 3500 HD, Savana 2500, Savana 3500, Yukon XL 2500. The fitment list also includes Classic and configuration-specific applications such as single rear wheels, heavy duty, 2 wheel steering, 4.83 inch hub hole, and 123mm rear disc center hole where required. Part number 4002-48021 is a practical choice when replacing worn rear rotors on GM trucks and vans with rear disc brakes.

Common Reasons for Replacement

• Rear brake pulsation or vibration during stopping
• Visible rotor rust, scoring, or uneven wear
• Brake noise caused by worn rotor surfaces
• Reduced braking consistency on heavy-duty GM vehicles
• Service replacement for rear brake maintenance on Chevrolet and GMC models

Installation Notes and Tips

Verify rear axle configuration, hub-hole size, steering setup, and single rear wheel or heavy-duty notes before ordering. Confirm the vehicle’s year, make, model, and rear brake configuration against the fitment list for 4002-48021. After installation, follow the brake pad manufacturer’s break-in procedure and inspect related rear brake components for wear.

Quality Assurance

Dynamite Friction’s GEOSPEC coated rotor line is built for application-specific fitment across the listed Chevrolet and GMC rear brake platforms. This part cross-references no additional part numbers in the provided data.