Dorman 520-171 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 520-171 suspension control arm and ball joint assembly is engineered for reliable performance in Chevrolet and GMC trucks and SUVs. Designed to meet regular suspension grade requirements, this assembly offers a pre-greased, ready-to-install solution for vehicles like the Chevrolet Tahoe and GMC Yukon.

• Pre-greased control arm and ball joint for immediate use
• Includes rubber bushings and mounting hardware for complete installation
• Iron casting/forged control arm construction for strength and durability
• Press-in ball joint with threaded stud for secure mounting
• Compatible with Chevrolet and GMC models including C1500, C2500, Express 2500, and Savana 3500

Product Features and Specifications

This suspension control arm assembly features a black iron control arm measuring up to 288.5 mm in width and 237 mm in length. The assembly includes rubber bushings to absorb road vibrations and reduce noise. The ball joint is installed and press-fitted with a 14 mm threaded stud, ensuring a secure connection to the suspension system. Mounting hardware is included, and the control arm has one mounting hole with a diameter of 12.3 mm. This assembly is designed for light suspension grade applications and is not adjustable.

Compatible Vehicles and Applications

The Dorman 520-171 is compatible with a range of Chevrolet and GMC vehicles, including:

• Chevrolet C35, C1500, C1500 Suburban, C2500, C2500 Suburban, C3500
• Chevrolet Express 2500, Express 3500, Tahoe
• GMC G30, Savana 2500, Savana 3500, Yukon

This part is ideal for restoring suspension performance and maintaining proper wheel alignment on these models.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Loose or failing ball joints leading to uneven tire wear
• Corroded or cracked control arms affecting suspension geometry
• Excessive vibration or noise from suspension components
• Difficulty maintaining proper wheel alignment

Installation Notes and Tips

The Dorman 520-171 comes pre-greased and includes all necessary mounting hardware for straightforward installation. The press-in ball joint is already installed, reducing installation time. Ensure the mounting hole aligns correctly with the vehicle’s frame and torque all fasteners to manufacturer specifications. This control arm assembly is designed for direct replacement and does not require adjustment.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards. The 520-171 control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and fitment accuracy. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship.