Raybestos 980634R Disc Brake Rotor - Rear

Overview of Raybestos R-Line Disc Brake Rotor 980634R

The Raybestos R-Line Disc Brake Rotor 980634R is engineered for reliable braking performance on select Scion and Subaru models. Designed as a solid, drum-in-hat type rotor, it offers precise fitment and consistent stopping power for vehicles like the Subaru WRX and Scion FR-S.

• Part Number: 980634R
• Brand: Raybestos R-Line
• Type: Solid Disc Brake Rotor with Drum-in-Hat design
• Mounting Bolt Holes: 5 holes with 12.9 mm diameter
• Outside Diameter: 285.8 mm (11.252 inches)
• Inside Diameter: 211.3 mm (8.319 inches)
• Nominal Thickness: 10.0 mm (0.394 inches)
• Discard Thickness: 8.5 mm (0.335 inches)
• Overall Height: 63.55 mm (2.502 inches)
• Surface Type: Smooth
• Center Hole Diameter: 58.0 mm (2.283 inches)
• Mounting Bolt Hole Circle Diameter: 100.0 mm (3.937 inches)
• Stud/Lug Hole Quantity: 5

Detailed Product Description

This Raybestos R-Line rotor 980634R is a solid disc brake rotor featuring a drum-in-hat design, which integrates the parking brake drum into the rotor itself. The smooth surface finish ensures consistent pad contact and braking efficiency. With a nominal thickness of 10 mm and a discard thickness of 8.5 mm, this rotor provides a clear service life indicator to maintain safe braking performance. The rotor’s 5-bolt mounting pattern with a 100 mm bolt circle diameter and 12.9 mm bolt hole diameter ensures compatibility with specific Scion and Subaru models. The overall height of 63.55 mm and center hole diameter of 58 mm are designed to match factory specifications for proper fitment and function.

Compatible Vehicles and Applications

This disc brake rotor 980634R is compatible with the following makes and models:

• Scion FR-S and BRZ
• Subaru WRX, Forester, Impreza, Legacy, and Outback

It is intended for use in vehicles requiring a solid rotor with integrated drum-in-hat parking brake functionality, commonly found on these models.

Common Issues Addressed by This Rotor

• Worn or warped rotors causing brake pulsation or noise
• Reduced braking efficiency due to rotor thickness below discard limits
• Corrosion or surface damage affecting pad contact
• Parking brake malfunction related to drum-in-hat rotor wear
• Fitment issues with incorrect rotor dimensions or bolt patterns

Installation Notes and Tips

• Verify rotor thickness before installation; replace if below 8.5 mm discard thickness
• Ensure mounting surfaces are clean and free of debris for proper fit
• Torque mounting bolts to manufacturer specifications to avoid rotor warping
• Inspect brake pads and hardware during rotor replacement for optimal performance
• Use proper tools to avoid damage to the rotor surface or mounting holes

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The 980634R rotor undergoes rigorous quality control to ensure durability and consistent braking performance. Warranty coverage details should be confirmed with the point of purchase or Raybestos directly, as warranty terms may vary.

About the Raybestos R-Line Product Line

The Raybestos R-Line product line focuses on delivering reliable, OEM-quality brake components designed for direct replacement applications. The R-Line rotors, including the 980634R, are engineered to meet factory specifications, providing consistent braking performance and fitment for vehicles such as the Subaru WRX and Scion FR-S. This line is suited for drivers seeking dependable brake parts without modifications or performance upgrades.