DFC Brake Rotors for Heavy-Duty Front Brakes

Dynamite Friction DFC Brake Rotors - GEOSPEC Coated, part number 4002-48042, are front disc brake rotors for select Chevrolet, GMC, and Jeep heavy-duty applications. This rotor set is built for vehicles that need direct-fit front brake service, including Chevrolet V20 and V20 Suburban, GMC V2500 and K2500 models, and Jeep J20 applications.

The GEOSPEC coated finish is part of the DFC Brake Rotors - GEOSPEC Coated line, which is focused on corrosion resistance for rotor surfaces that are exposed to road moisture and brake dust. If you are replacing worn front rotors on a Chevrolet K20, GMC K2500 Suburban, or Jeep J20, this part number 4002-48042 gives you a fitment-specific replacement option.

• Front disc brake rotor set for select 1971-1991 trucks and SUVs
• GEOSPEC coated surface for added protection on exposed rotor areas
• Direct-fit replacement for front brake service on heavy-duty GM and Jeep platforms
• Compatible with multiple rear brake configurations listed in the fitment notes
• Part number 4002-48042 for ordering and catalog matching

Fitment Details

• Fits 1989-1991 Chevrolet V2500 Suburban, front.
• Fits 1987-1991 GMC V2500 Suburban, front.
• Fits 1974-1988 Jeep J20, front.
• Fits 1987 Chevrolet V20, front, 13-inch rear disc brake pads.
• Fits 1987 Chevrolet V20, front, rear disc brake rotor designed for 11 inch rear drums.
• Fits 1987 Chevrolet V20 Suburban, front, rear disc brake rotor designed for 11 inch rear drums.
• Fits 1987 Chevrolet V20 Suburban, front, 13-inch rear disc brake pads.
• Fits 1987 GMC V2500, front, 13 inch rear drums; JB7 & JD7 brakes; rotors only.
• Fits 1987 GMC V2500, front, 11 inch rear drums; excluding JB7 & JD7 brakes; rotors only.
• Fits 1985-1986 Chevrolet K20, front, 13 inch rear drums; JB7 & JD7 brakes; 10-1/2 inch rear axle; rotor only.
• Fits 1981-1986 Chevrolet K20, front, 13 inch rear drums; JB7 brakes; 10-1/2 inch rear axle; rotor only.
• Fits 1981-1986 Chevrolet K20, front, 11 inch rear drums; JB6 & JD6 brakes; 9-1/2 inch rear axle; rotor only.
• Fits 1976-1986 Chevrolet K20 Suburban, front, 13-inch rear drums only; rotor not included.
• Fits 1972-1973 Chevrolet K20 Suburban, front, 13-inch rear drums only; rotor not included.
• Fits 1976-1986 Chevrolet K20 Suburban, front, 11 inch rear drums; rotor only.
• Fits 1972-1973 Chevrolet K20 Suburban, front, 11 inch rear drums; rotor only.
• Fits 1979-1986 GMC K2500, front, 11 inch rear drums; rotor only.
• Fits 1979-1986 GMC K2500, front, 13-inch rear drums only; rotor not included.
• Fits 1985-1986 GMC K2500 Suburban, front, 11 inch rear drums; rotor only.
• Fits 1979-1980 GMC K2500 Suburban, front, 11 inch rear drums; rotor only.
• Fits 1985-1986 GMC K2500 Suburban, front, 13-inch rear drums only; rotor not included.
• Fits 1979-1980 GMC K2500 Suburban, front, 13-inch rear drums only; rotor not included.
• Fits 1981-1984 GMC K2500 Suburban, front, 11 inch rear drums; 6-3/8 inch tall drums.
• Fits 1981-1984 GMC K2500 Suburban, front, 13 inch rear drums; 6-1/2 inch tall drums.
• Fits 1981-1984 GMC K2500 Suburban, front, 11 inch rear drums; 4-5/8 inch tall drums.
• Fits 1981-1984 GMC K2500 Suburban, front, 13 inch rear drums; 4-5/8 inch tall drums.
• Fits 1975-1980 Chevrolet K20, front, 11 inch rear drums; JB6 brakes; rotor only.
• Fits 1975-1980 Chevrolet K20, front, 13 inch rear drums; JB7 brakes; rotor only.
• Fits 1977 Chevrolet K20 Suburban, front, 11 inch rear drums; JB6 brakes; rotor only.
• Fits 1977 Chevrolet K20 Suburban, front, 13 inch rear drums; JB7 brakes; rotor only.
• Fits 1974-1975 Chevrolet K20 Suburban, front, 13-inch rear disc brake pads.
• Fits 1974-1975 Chevrolet K20 Suburban, front, rear disc brake rotor designed for 11 inch rear drums.
• Fits 1971 Chevrolet K20 Suburban, front, Dana rear axle.

What This Rotor Set Helps Address

• Front brake pulsation from worn or uneven rotors
• Brake noise caused by rotor surface wear or corrosion
• Reduced braking consistency during routine stop-and-go driving
• Service replacement needs on GM heavy-duty trucks and Suburbans
• Rotor corrosion on vehicles exposed to wet or salted roads

Installation Notes

Confirm the rear brake configuration, axle details, and brake package notes before ordering, since this part number 4002-48042 is listed with multiple application-specific fitments. Match the vehicle year, make, model, and front position exactly, and inspect pads, calipers, and wheel bearings during rotor replacement.

For search reference, this part cross-references common OE-style front rotor applications for the same vehicle families, including Chevrolet K20 and GMC K2500 platforms.

Quality Assurance

DFC Brake Rotors - GEOSPEC Coated are positioned as a corrosion-resistant rotor line for direct-fit brake service on select trucks and SUVs. Part number 4002-48042 is cataloged for front axle applications across Chevrolet, GMC, and Jeep fitments.