Dynamite Friction 631-46003L Disc Brake Rotor - Rear Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-46003L) is engineered for reliable braking performance on select Buick, Cadillac, and Oldsmobile models. Designed with a directional, slotted and drilled surface, this rotor enhances heat dissipation and braking consistency under demanding conditions.

• Disc type: Solid disc brake rotor
• Surface finish: Slotted and drilled for improved cooling
• Rust resistant zinc silver hat finish
• Nominal thickness: 12.7 mm with discard thickness at 10.9 mm
• Overall diameter: 255 mm with 5 bolt holes (13.1 mm diameter)
• Directional brake surface for optimized performance
• Compatible with 5-lug wheel patterns and 115 mm bolt circle diameter

Detailed Product Features and Specifications

This DFC Brake Rotor - Drilled and Slotted - Silver features a solid rotor design with a 255 mm outside diameter and an overall height of 38.3 mm. The rotor’s surface is both drilled and slotted, which helps to reduce brake fade by allowing gases and debris to escape, improving pad bite and heat dissipation. The zinc silver coating on the hat area provides corrosion resistance, extending the rotor’s service life. With a nominal thickness of 12.7 mm and a discard thickness of 10.9 mm, this rotor meets precise wear limits for safe operation. The 5 bolt holes and lug holes, each 13.1 mm in diameter, fit vehicles with a 115 mm bolt circle diameter, ensuring proper fitment and secure mounting.

DFC Brake Rotor - Drilled and Slotted - Silver Product Line

The DFC Brake Rotor - Drilled and Slotted - Silver line from Dynamite Friction focuses on rotors that combine drilled holes and slots to enhance braking performance and rotor longevity. This product line is designed to provide consistent braking under various driving conditions by improving heat dissipation and reducing brake fade. The silver zinc coating adds rust resistance, making these rotors suitable for vehicles exposed to moisture and road salts.

Compatible Vehicles and Applications

This rotor is compatible with the following makes and models:

• Buick Allante
• Cadillac Eldorado, Seville, Deville
• Oldsmobile Toronado, Reatta, Riviera

It is ideal for drivers seeking replacement rotors that maintain factory specifications and performance for these specific vehicles.

Common Issues Addressed by This Rotor

• Brake fade caused by overheating during extended braking
• Uneven pad wear due to poor heat dissipation
• Corrosion and rust buildup on rotor surfaces
• Vibration or noise from warped or worn rotors
• Reduced braking efficiency from glazed or damaged rotors

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (10.9 mm) before installation
• Clean rotor surface to remove any protective coatings before mounting
• Check compatibility with vehicle bolt pattern (5 lug, 115 mm bolt circle)
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Inspect brake pads and calipers during rotor replacement for optimal performance

Quality Assurance and Warranty

Dynamite Friction manufactures the 631-46003L rotor to meet or exceed OEM standards for fit, form, and function. The rust-resistant coating and precision machining contribute to consistent braking performance and durability. Warranty details are provided by the manufacturer and should be confirmed at the time of purchase.