Raybestos 56750 Disc Brake Rotor and Hub Assembly - Front

Overview of Raybestos Specialty - Truck Disc Brake Rotor and Hub Assembly

The Raybestos Specialty - Truck Disc Brake Rotor and Hub Assembly, part number 56750, is engineered for reliable braking performance on Chevrolet and GMC trucks. Designed specifically for P30 and P3500 models, this assembly integrates rotor and hub components to meet the demands of heavy-duty truck applications.

• Compatible with Chevrolet P30 and GMC P3500 trucks
• Includes disc brake rotor and hub assembly
• Mounting bolt hole quantity: 8 for secure fitment
• Mounting bolt hole circle diameter: 165.1 mm (6.5 inches)
• Mounting bolt hole diameter: 15.25 mm (0.6 inches)
• Nominal rotor thickness: 39.0 mm (1.535 inches)
• Discard rotor thickness: 37.2 mm (1.465 inches)
• Stud/lug hole quantity: 8 for proper wheel alignment

Detailed Product Description and Specifications

This Raybestos disc brake rotor and hub assembly (part number 56750) is designed to provide consistent braking performance for Chevrolet P30 and GMC P3500 trucks. The rotor features a nominal thickness of 39.0 mm (1.535 inches) and a discard thickness of 37.2 mm (1.465 inches), ensuring safe replacement intervals and maintaining braking efficiency. The assembly includes eight mounting bolt holes arranged on a 165.1 mm (6.5 inch) bolt circle diameter, with each hole measuring 15.25 mm (0.6 inches) in diameter. Additionally, the hub accommodates eight stud/lug holes, supporting proper wheel mounting and alignment.

About the Raybestos Specialty - Truck Product Line

The Specialty - Truck line from Raybestos focuses on components tailored for heavy-duty truck applications. This product line emphasizes durability and precise fitment for commercial and fleet vehicles, such as the Chevrolet P30 and GMC P3500. The integrated rotor and hub assembly design simplifies installation and maintenance, providing a reliable braking solution for demanding truck environments.

Common Applications and Problem Solving

• Replacement for worn or warped disc brake rotors on Chevrolet P30 and GMC P3500 trucks
• Addresses brake pulsation and vibration issues caused by uneven rotor surfaces
• Resolves hub bearing wear and wheel alignment problems
• Improves braking response and safety under heavy load conditions
• Prevents premature rotor discard by maintaining proper thickness specifications

Installation Notes and Tips

Ensure the mounting surfaces are clean and free of debris before installation. Verify that the mounting bolt holes and stud/lug holes align correctly with the vehicle hub. Use a calibrated torque wrench to tighten bolts to manufacturer specifications to avoid warping the rotor. Check rotor thickness before installation to confirm it meets nominal thickness requirements. It is recommended to replace brake pads simultaneously to optimize braking performance.

Quality Assurance and Warranty

Raybestos maintains strict quality control standards for the Specialty - Truck product line, ensuring each disc brake rotor and hub assembly meets OEM specifications. While specific warranty details for part number 56750 are not provided here, Raybestos products typically come with a limited warranty covering defects in materials and workmanship. Consult Raybestos or authorized distributors for exact warranty terms.