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

Drilled and Slotted Front Right Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver, part number 631-42031R, is a vented disc brake rotor built for the front right position on select Chevrolet, GMC, and Jeep applications. Its 301 mm outside diameter, 32.76 mm nominal thickness, and directional slotted-and-drilled surface are specified for vehicles that need a direct-fit replacement rotor with a corrosion-resistant finish.

The silver zinc hat finish and rust resistant coating help protect the rotor’s exposed surfaces, while the plain disc finish and vented construction support consistent brake performance. This rotor is a fitment-based solution for classic 4x4 and SUV platforms, including Chevrolet Blazer, GMC Jimmy, and Jeep Grand Wagoneer applications.

• Part number 631-42031R for the front right brake position
• Slotted X drilled surface type with directional brake surface
• Vented disc brake rotor construction
• Outside diameter: 301 mm
• Nominal thickness: 32.76 mm; discard thickness: 30.86 mm
• 6-bolt pattern with 139.7 mm bolt circle diameter
• 101.7 mm center hole diameter
• Zinc silver hat finish with rust resistant coating

Product Line Details

DFC Brake Rotor - Drilled and Slotted - Silver is the Dynamite Friction rotor line focused on replacement rotors with a performance-oriented surface design and corrosion protection. For buyers searching for a drilled and slotted front right rotor for Chevrolet Blazer, GMC Jimmy, or Jeep Grand Wagoneer fitments, this line combines OE-style dimensions with a more aggressive rotor face.

Fitment

• Fits 1987-1991 Chevrolet Blazer, front right. Rotor only.
• Fits 1971-1973 Chevrolet Blazer, front right. Rotor only.
• Fits 1990-1991 Chevrolet V1500 Suburban, front right.
• Fits 1971-1991 GMC Jimmy, front right. Rotor only.
• Fits 1987-1991 GMC V1500 Suburban, front right. Rotor only.
• Fits 1984-1991 Jeep Grand Wagoneer, front right. Full Size SJ Series; rotor only.
• Fits 1987-1988 Chevrolet V10 Suburban, front right.
• Fits 1987 Chevrolet V10, front right.
• Fits 1987 GMC V1500, front right. 11 inch rear drums; excluding JB7 & JD7 brakes; rotors only.
• Fits 1976-1986 Chevrolet K10, front right. Rotor only.
• Fits 1975-1986 Chevrolet K10 Suburban, front right. Rotor only.
• Fits 1971-1973 Chevrolet K10 Suburban, front right. Rotor only.
• Fits 1978-1986 Chevrolet K5 Blazer, front right.
• Fits 1979-1986 GMC K1500, front right. Rotor only.
• Fits 1979-1986 GMC K1500 Suburban, front right. Rotor only.
• Fits 1974-1986 Jeep J10, front right. Rotor only.
• Fits 1984-1985 Jeep Wagoneer, front right. Full Size SJ Series.
• Fits 1974-1983 Jeep Cherokee, front right. Rotor only.
• Fits 1979-1983 Jeep Wagoneer, front right. Disc only.
• Fits 1974-1978 Jeep Wagoneer, front right. Disc only; plain rear drums.
• Fits 1974-1978 Jeep Wagoneer, front right. Disc only; finned rear drums.
• Fits 1976-1977 Chevrolet K5 Blazer, front right. Rotor only.
• Fits 1975 Chevrolet K10, front right. 2 inch rear shoes; under 5,800 lb GVW; rotor only.
• Fits 1975 Chevrolet K10, front right. 2-3/4 inch rear shoes; over 5,600 lb GVW; rotor only.
• Fits 1975 Chevrolet K5 Blazer, front right. 2-3/4 inch rear shoes; rotor only.
• Fits 1975 Chevrolet K5 Blazer, front right. 2 inch rear shoes; rotor only.
• Fits 1974 Chevrolet Blazer, front right. 2-3/4 inch rear shoes; rotor only.
• Fits 1974 Chevrolet Blazer, front right. 2 inch rear shoes; rotor only.
• Fits 1974 Chevrolet K10 Suburban, front right. 2 inch rear shoes; rotor only.
• Fits 1974 Chevrolet K10 Suburban, front right. 2-3/4 inch rear shoes; rotor only.

Common Uses

• Replacing a worn or below-spec front right brake rotor
• Addressing brake pulsation caused by rotor wear or thickness variation
• Restoring braking performance on classic Chevrolet, GMC, and Jeep 4x4 platforms
• Updating a vented rotor with a drilled and slotted surface design
• Replacing a rotor with corrosion on the hat or exposed surfaces

Installation Notes

Verify rotor dimensions, bolt pattern, center hole diameter, and brake configuration before installation. This part number 631-42031R is listed for the front right position only, and fitment notes vary by vehicle trim, rear brake setup, and brake package. For best results, inspect pads, caliper condition, and hub surfaces during rotor replacement.

Quality Assurance

This Dynamite Friction rotor uses a rust resistant coating and zinc silver hat finish for added surface protection. The listed specifications provide the dimensional reference needed for fitment verification on Chevrolet Blazer, GMC Jimmy, and Jeep Grand Wagoneer applications.