Raybestos 66761 Disc Brake Rotor - Front or Rear

Raybestos Specialty - Truck Disc Brake Rotor Overview

The Raybestos Specialty - Truck Disc Brake Rotor part number 66761 is engineered for heavy-duty truck applications requiring reliable braking performance. Designed as a solid, drum-in-hat type rotor, it offers precise fitment and durability for specific truck models.

• Solid disc brake rotor with drum-in-hat design
• Overall height: 123.7 mm (4.870 inches)
• Outside diameter: 394.95 mm (15.550 inches)
• Nominal thickness: 38.1 mm (1.500 inches)
• Discard thickness: 36.0 mm (1.417 inches)
• Mounting bolt hole quantity: 10
• Center hole diameter: 139.45 mm (5.490 inches)
• Mounting bolt hole circle diameter: 163.0 mm (6.417 inches)
• ABS tone ring not included

Specialty - Truck Product Line Details

The Raybestos Specialty - Truck line focuses on components tailored for truck brake systems, emphasizing durability and compatibility with heavy-duty vehicles. This product line includes parts designed to meet the rigorous demands of truck braking, such as the 66761 disc brake rotor, which integrates a drum-in-hat design to accommodate parking brake functions commonly found in truck applications.

Technical Specifications and Features

This disc brake rotor features a solid construction with a nominal thickness of 38.1 mm and a discard thickness of 36.0 mm, ensuring a clear service limit for maintenance. The rotor’s outside diameter measures 394.95 mm, providing ample surface area for effective braking. The 10 mounting bolt holes and corresponding stud/lug hole quantity ensure secure attachment to compatible truck hubs. The center hole diameter of 139.45 mm allows for precise alignment during installation. Note that this rotor does not include an ABS tone ring, so it is intended for vehicles without ABS sensor integration on this component.

Applications and Problem Solving

• Replacement for worn or warped truck disc brake rotors
• Restores braking efficiency on heavy-duty trucks
• Addresses rotor thickness below discard limits
• Suitable for trucks requiring drum-in-hat rotor design
• Helps eliminate brake noise and vibration caused by rotor damage

Installation Notes and Tips

Ensure compatibility with your truck’s make and model by verifying bolt hole pattern and rotor dimensions. The 10-bolt mounting configuration requires proper torque specifications to avoid rotor warping. Since this rotor does not include an ABS tone ring, confirm your vehicle’s ABS sensor setup before installation. Clean the hub surface thoroughly to prevent uneven rotor seating and brake pulsation.

Quality Assurance and Warranty

Raybestos manufactures the Specialty - Truck disc brake rotor to meet industry standards for durability and performance. While specific warranty details are not provided here, Raybestos products typically come with manufacturer-backed quality assurance to support reliable operation in truck brake systems.