Dorman 524-770 Suspension Control Arm and Ball Joint Assembly - Rear Right Upper

Dorman 524-770 Rear Right Upper Control Arm

This Dorman suspension control arm and ball joint assembly is a direct replacement for specific Subaru applications, including Subaru Impreza, WRX, WRX STI, and Legacy rear right upper positions. It is built for smooth ride quality, directional stability, and predictable suspension response.

Key Features

• Direct replacement suspension control arm and ball joint assembly
• Fits the rear right upper position on select Subaru models
• Pre-greased for ready-to-install service
• Ball joint is installed and uses a press-in mounting design
• Stamped steel control arm with black finish
• Rubber bushings included for suspension isolation
• Light suspension grade construction for OE-style replacement use

Detailed Description

Dorman 524-770 is engineered as an OE-style replacement for the rear right upper suspension location on select Subaru vehicles. It combines a stamped steel control arm with an installed ball joint and included bushings to restore suspension geometry and help maintain stable handling. This part cross-references Mevotech Supreme CMS801176 for the same application. It is a practical choice for Subaru Impreza, WRX, WRX STI, and Legacy owners needing a replacement control arm assembly that matches the original layout and mounting style.

What It Helps Fix

• Clunking or looseness from a worn rear upper control arm
• Uneven rear suspension movement
• Directional instability during driving
• Excess play from a worn ball joint
• Ride quality issues caused by deteriorated bushings

Installation Notes and Tips

Verify vehicle fitment by year, model, and rear right upper position before installation. The ball joint is installed and the assembly is pre-greased, but mounting hardware is not included. Because this part uses a press-in ball joint and pinch-style stud design, proper suspension service tools and alignment procedures are recommended after replacement. This part is listed for 2012-2025 Subaru Impreza, 2015-2021 Subaru WRX, 2015-2021 Subaru WRX STI, and 2015-2019 Subaru Legacy in the rear right upper position.

Quality Assurance

Dorman uses an industry-leading evaluation process to verify fit, function, and suspension performance characteristics for this replacement control arm assembly. The design supports consistent ride behavior and OE-style operation for the specified Subaru applications.