Delphi TC7644 Suspension Control Arm and Ball Joint Assembly - Rear Right Upper

Delphi Suspension Control Arm and Ball Joint Assembly Overview

The Delphi TC7644 suspension control arm and ball joint assembly is designed for rear right upper positioning on select Scion, Subaru, and Toyota models. This pre-greased, steel control arm features machined ball joint mounting and includes rubber bushings to ensure reliable suspension performance.

• Pre-greased for immediate installation
• Includes rubber bushings for vibration dampening
• Machined ball joint mounting type for precise fit
• Durable steel construction with casting and forging
• Compatible with rear right upper suspension position
• Fits Scion 86, Subaru BRZ, FR-S, GR86, Impreza, WRX, and WRX STI

Detailed Product Description

The Delphi TC7644 suspension control arm and ball joint assembly is engineered with a robust steel construction combining casting and forging methods to provide strength and durability. The control arm is finished in black and measures approximately 9.969 inches in length and 6 inches in maximum width, designed to meet exact OEM specifications. It comes pre-greased, eliminating the need for additional lubrication during installation. The assembly includes rubber bushings that help absorb road vibrations and reduce noise, contributing to a smoother ride. The ball joint mounting is machined for a precise fit, ensuring proper alignment and suspension geometry. This part is intended for the rear right upper position and features two mounting holes with a diameter of 0.236 inches, matching factory mounting points.

Compatible Vehicles and Applications

This suspension control arm and ball joint assembly is compatible with the following vehicles:

• Scion 86
• Subaru BRZ, FR-S, GR86
• Subaru Impreza, WRX, WRX STI
• Toyota 86

It is designed to replace worn or damaged rear right upper suspension components, restoring handling and stability.

Common Issues Addressed by This Part

• Excessive suspension play or looseness in the rear right upper control arm
• Uneven tire wear caused by misaligned suspension geometry
• Clunking or knocking noises from worn ball joints or bushings
• Reduced vehicle stability and handling performance
• Vibration and harshness transmitted through the suspension

Installation Notes and Tips

Before installation, verify the part number TC7644 matches your vehicle’s requirements. This assembly comes pre-greased and includes bushings, but does not include mounting hardware or grease fittings. Use factory mounting bolts and torque to manufacturer specifications. Since the control arm is not adjustable, ensure proper alignment after installation. Professional installation is recommended to maintain suspension geometry and vehicle safety.

Quality Assurance and Warranty

The Delphi TC7644 suspension control arm and ball joint assembly is a standard replacement grade part manufactured to meet OEM standards. Delphi products undergo rigorous quality control to ensure durability and fitment accuracy. While specific warranty details are not provided, Delphi typically offers limited warranties covering defects in materials and workmanship. Consult your supplier or vehicle manufacturer for warranty terms.