Raybestos 780777R Disc Brake Rotor - Front or Rear

Overview of Raybestos R-Line Disc Brake Rotor 780777R

The Raybestos R-Line 780777R disc brake rotor is engineered for vehicles requiring reliable braking performance with vented rotor design. This drum-in-hat type rotor features precise dimensions to ensure proper fitment and consistent braking response for compatible makes and models.

• Part Number: 780777R
• Brand Line: Raybestos R-Line
• Rotor Type: Vented, Drum-in-Hat
• Surface Type: Smooth
• Outside Diameter: 15.354 inches (390.000 mm)
• Nominal Thickness: 1.535 inches (39.000 mm)
• Discard Thickness: 1.472 inches (37.400 mm)
• Inside Diameter: 10.622 inches (269.800 mm)
• Overall Height: 4.890 inches (124.200 mm)
• Mounting Bolt Hole Quantity: 10
• Center Hole Diameter: 5.488 inches (139.400 mm)
• Mounting Bolt Hole Circle Diameter: 6.417 inches (163.000 mm)
• Mounting Bolt Hole Diameter: 0.507 inches (12.900 mm)

Raybestos R-Line Product Line Details

The R-Line by Raybestos is designed to provide dependable braking components that meet or exceed OEM specifications. This product line focuses on delivering rotors with precise machining and durable materials, suitable for a range of vehicle applications. The 780777R rotor exemplifies the R-Line’s commitment to quality and fitment accuracy, making it a practical choice for replacement disc brake rotors.

Technical Specifications and Features

The 780777R rotor is a vented disc brake rotor with a drum-in-hat design, allowing integration of the parking brake drum within the rotor assembly. Its smooth surface finish supports consistent pad contact and braking efficiency. The rotor’s outside diameter measures 15.354 inches, with a nominal thickness of 1.535 inches and a discard thickness of 1.472 inches, ensuring safe replacement intervals. The 10 mounting bolt holes and 10 stud/lug holes provide secure attachment, with precise hole diameters and bolt circle measurements to match specific vehicle hubs.

Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation or noise
• Restores braking performance on vehicles with vented disc brake systems
• Addresses rotor thickness below manufacturer discard limits
• Suitable for vehicles requiring drum-in-hat rotor design for integrated parking brake
• Compatible with vehicles needing 10-bolt mounting patterns and specific diameter fitments

Installation Notes and Tips

Ensure the rotor surface is clean and free of rust or debris before installation. Verify the mounting bolt hole pattern and center hole diameter match the vehicle hub specifications. Use proper torque settings on mounting bolts to avoid rotor warping. It is recommended to replace brake pads simultaneously to maintain optimal braking performance.

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet OEM standards for durability and performance. While specific warranty details for part number 780777R are not provided, Raybestos products typically come with a limited warranty against defects in material and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.