Dynamite Friction 4312-48020 Disc Brake Kit - Rear

Rear Brake Kit for Heavy-Duty GM Trucks

Dynamite Friction DFC GEOSPEC Coated Rotors with 3000 Ceramic Brake Pads and Hardware Kit, part number 4312-48020, is a rear disc brake kit built for select Chevrolet and GMC trucks and SUVs. It combines coated rotors, ceramic pads, and brake hardware components in one service package for rear brake replacement on applications such as Chevrolet Silverado 2500 HD rear and GMC Sierra 2500 HD rear.

Key Features

• DFC 3000 ceramic brake pads for stable friction across a wide temperature range
• Low-dust pad formulation for cleaner wheel maintenance
• Post-cured and scorched pads for consistent initial braking response
• Premium rubber-steel-rubber shims for improved noise, vibration, and harshness control
• GEOSPEC coated rotors with a silver-gray finish that resists rust better than conventional paint or zinc coatings
• Dry-packaged rotors that are ready to install without oil removal
• Non-directional rotor finish for smoother stops and faster pad bed-in
• Hardware kit engineered with PTFE coating, vulcanized rubber, and stainless steel

Product Details

The DFC GEOSPEC Coated Rotors with 3000 Ceramic Brake Pads and Hardware Kit is designed for rear brake service on GM heavy-duty platforms, including Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD applications. The coated rotor design helps reduce corrosion while the ceramic pad compound is formulated for reliable stopping performance, fade resistance, and quieter operation. Part number 4312-48020 is built to OE-style specifications for durability, stability, and consistent fitment across the listed rear applications.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Brake Service Issues

• Rear brake noise, squeal, or vibration
• Rust buildup on exposed rotor surfaces
• Uneven pad wear from fatigued hardware
• Reduced braking consistency from worn rear components
• Longer stopping distances caused by worn pads and rotors

Installation Notes and Fitment

Compatible With rear brake service on the following vehicles:

• Fits 2008-2013 Chevrolet Suburban 2500, rear
• Fits 2008-2013 GMC Yukon XL 2500, rear
• Fits 2001-2010 Chevrolet Silverado 2500 HD, rear
• Fits 2007-2010 Chevrolet Silverado 3500 HD, rear, Single Rear Wheels
• Fits 2001-2010 GMC Sierra 2500 HD, rear
• Fits 2007-2010 GMC Sierra 3500 HD, rear, Heavy Duty; Single Rear Wheels
• Fits 2005-2006 Chevrolet Avalanche 2500, rear
• Fits 1999-2004 Chevrolet Silverado 2500, rear
• Fits 1999-2004 GMC Sierra 2500, rear, excluding Heavy Duty

Verify axle configuration, hub dimensions, and rear brake setup before installation. Clean the hub mounting surface, inspect calipers and slides, and follow proper pad bed-in procedures after installation. The dry rotor coating is designed to be swept away by the brake pads during normal use.

Quality Assurance

DFC GEOSPEC rotors are machined to tight tolerances, finished with a non-directional surface, and inspected for critical dimensions and balance where applicable. Each rotor is covered by a 12-month warranty against defects in material and workmanship.