Raybestos 56992 Disc Brake Rotor - Rear

Reliable Disc Brake Rotor for Chevrolet and GMC Trucks

The Raybestos Specialty - Truck Disc Brake Rotor 56992 is engineered to meet the demanding braking needs of heavy-duty trucks. Designed specifically for Chevrolet and GMC 3500 series models, this vented rotor ensures consistent performance and durability under load.

• Vented disc brake rotor with drum-in-hat design for enhanced heat dissipation
• Nominal thickness of 1.185 inches (30.100 mm) with discard thickness at 1.122 inches (28.500 mm)
• Overall height of 5.200 inches (132.100 mm) for precise fitment
• Outside diameter measures 12.800 inches (325.100 mm) for optimal braking surface
• Features 8 mounting bolt holes and 8 stud/lug holes for secure installation
• Center hole diameter of 4.835 inches (122.800 mm) with a mounting bolt hole circle diameter of 6.500 inches (165.100 mm)

About the Raybestos Specialty - Truck Product Line

The Specialty - Truck line by Raybestos is tailored for heavy-duty truck applications requiring robust braking components. This product line focuses on delivering rotors and drums that withstand the rigors of commercial and fleet use, providing reliable stopping power and longevity. The 56992 rotor exemplifies this with its vented design and drum-in-hat configuration, suitable for demanding Chevrolet and GMC 3500 series trucks.

Detailed Product Description

The Raybestos 56992 disc brake rotor is a vented rotor featuring a drum-in-hat design, combining the benefits of a disc rotor with an integrated parking brake drum. Its nominal thickness of 1.185 inches (30.100 mm) and discard thickness of 1.122 inches (28.500 mm) ensure a long service life while maintaining safety standards. The rotor’s outside diameter of 12.800 inches (325.100 mm) and overall height of 5.200 inches (132.100 mm) are engineered for precise compatibility with Chevrolet Express 3500, GMC Savana 3500, and various Sierra and Silverado 3500 models, including HD and Classic variants. The 8 mounting bolt holes and stud/lug holes provide a secure fitment, while the vented design aids in heat dissipation during heavy braking.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Chevrolet Express 3500 and GMC Savana 3500 trucks
• Addresses brake fade caused by overheating in heavy-duty Sierra 3500 and Silverado 3500 models
• Restores proper parking brake function with integrated drum-in-hat design
• Improves braking performance on trucks used for towing or hauling heavy loads
• Solves issues related to uneven rotor wear and vibration during braking

Installation Notes and Tips

Ensure the rotor thickness is measured before installation to confirm it meets the nominal thickness of 1.185 inches (30.100 mm) and is above the discard thickness of 1.122 inches (28.500 mm). Properly clean the mounting surface and check the mounting bolt holes and stud/lug holes for any damage. The vented design requires attention to rotor cooling during installation to maintain performance. Use appropriate torque specifications for the 8 mounting bolts to secure the rotor firmly.

Quality Assurance and Warranty

Raybestos Specialty - Truck rotors are manufactured to meet or exceed OEM specifications for Chevrolet and GMC heavy-duty trucks. While specific warranty details are not provided, Raybestos products typically undergo rigorous quality control to ensure durability and reliable braking performance. Refer to Raybestos documentation or authorized distributors for warranty information related to part number 56992.