Raybestos 56998 Disc Brake Rotor - Front

Overview of Raybestos Specialty - Truck Disc Brake Rotor 56998

The Raybestos Specialty - Truck Disc Brake Rotor 56998 is engineered for reliable braking performance on select Buick and Pontiac models. Designed specifically for the Aztek and Rendezvous, this vented rotor meets precise specifications to maintain optimal stopping power and durability.

• Vented disc brake rotor for improved heat dissipation
• Nominal thickness of 1.185 inches (30.100 mm)
• Discard thickness at 1.063 inches (27.000 mm)
• Overall height of 2.040 inches (51.800 mm)
• Outside diameter measuring 10.830 inches (275.100 mm)
• Five mounting bolt holes with a 4.528 inch (115.000 mm) bolt circle diameter
• Center hole diameter of 2.798 inches (71.050 mm)
• Conventional rotor type compatible with drum-in-hat setups

Detailed Product Description

This Raybestos disc brake rotor, part number 56998, is designed for use on Buick Aztek and Pontiac Rendezvous vehicles. It features a vented design that helps dissipate heat more effectively than solid rotors, reducing the risk of brake fade during heavy use. The rotor’s nominal thickness of 1.185 inches ensures a robust braking surface, while the discard thickness of 1.063 inches indicates when replacement is necessary to maintain safe braking performance. The overall height of 2.040 inches and outside diameter of 10.830 inches are engineered to fit precisely with the vehicle’s brake system. The rotor includes five mounting bolt holes with a 4.528 inch bolt circle diameter, ensuring secure installation. Its conventional design is compatible with drum-in-hat brake configurations commonly found on these models.

About the Raybestos Specialty - Truck Product Line

The Specialty - Truck line from Raybestos focuses on heavy-duty and specialty brake components designed to meet the demands of truck and SUV applications. This product line emphasizes durability and performance under load, making it suitable for vehicles like the Buick Aztek and Pontiac Rendezvous that require reliable braking in various driving conditions. The 56998 rotor exemplifies this focus by combining vented rotor technology with precise fitment specifications.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors causing brake pulsation
• Upgrading from solid to vented rotors for improved heat management
• Resolving brake noise or vibration related to rotor surface irregularities
• Maintaining proper rotor thickness to ensure braking efficiency
• Ensuring compatibility with drum-in-hat brake systems on specified models

Installation Notes and Tips

• Verify rotor thickness before installation; replace if below discard thickness of 1.063 inches
• Ensure mounting surfaces and bolt holes are clean and free of debris
• Torque mounting bolts to manufacturer specifications to avoid rotor warping
• Inspect brake pads and hardware for wear during rotor replacement
• Test brakes after installation to confirm proper function and absence of noise or vibration

Quality Assurance and Warranty

Raybestos disc brake rotors undergo rigorous quality control to meet industry standards for durability and performance. The Specialty - Truck line is manufactured to precise specifications to ensure consistent fit and function. While specific warranty details for part number 56998 should be confirmed with the supplier, Raybestos typically offers limited warranties covering defects in materials and workmanship.