Raybestos 580449 Disc Brake Rotor - Rear

Overview of Raybestos Specialty - Street Performance Rotor

The Raybestos Specialty - Street Performance disc brake rotor, part number 580449, is engineered for reliable braking on select GM vehicles. Designed as a solid, conventional rotor, it offers consistent performance for Buick, Chevrolet, Oldsmobile, and Pontiac models including Cutlass, Cutlass Supreme, Grand Prix, Lumina, Monte Carlo, and Regal.

• Solid disc brake rotor with conventional drum-in-hat design
• Outside diameter: 10.945 inches (278.0 mm)
• Nominal thickness: 0.435 inches (11.05 mm)
• Discard thickness: 0.370 inches (9.4 mm)
• Overall height: 1.086 inches (27.6 mm)
• Mounting bolt hole quantity: 5 with 115 mm bolt circle diameter
• Stud/lug hole quantity: 5

Detailed Product Description

This Raybestos Specialty - Street Performance rotor (part number 580449) is a solid disc brake rotor designed for specific GM vehicles. The rotor features a conventional drum-in-hat style, which integrates the drum brake assembly within the rotor hat area. With an outside diameter of 10.945 inches and a nominal thickness of 0.435 inches, it meets the precise specifications required for proper fit and function on Buick Cutlass and Cutlass Supreme, Chevrolet Lumina and Monte Carlo, Oldsmobile Cutlass and Regal, and Pontiac Grand Prix models. The discard thickness of 0.370 inches indicates the minimum safe thickness before replacement is necessary, ensuring safety and performance standards are maintained.

Specialty - Street Performance Product Line

The Specialty - Street Performance line by Raybestos focuses on delivering rotors that meet the demands of street-driven vehicles requiring dependable braking performance. This product line balances durability and performance for everyday driving conditions, making it suitable for the listed GM models where consistent braking response is essential.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Buick Cutlass and Chevrolet Monte Carlo
• Restores proper braking performance on Pontiac Grand Prix and Oldsmobile Regal
• Addresses rotor thickness below discard limits to maintain safety
• Eliminates brake pulsation caused by uneven rotor surfaces
• Compatible upgrade for vehicles requiring a solid, conventional rotor design

Installation Notes and Tips

• Verify rotor dimensions and bolt pattern match vehicle specifications before installation
• Ensure mounting surfaces are clean and free of debris to prevent rotor runout
• Torque mounting bolts to manufacturer specifications to avoid warping
• Inspect brake pads and hardware during rotor replacement for optimal performance

Quality Assurance and Warranty

Raybestos rotors undergo rigorous quality control to meet OEM standards for fit, form, and function. The Specialty - Street Performance rotor 580449 is manufactured to provide consistent braking performance and durability. Warranty coverage details should be confirmed with the product documentation or authorized Raybestos distributor.