Dorman 520-179 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 520-179 suspension control arm and ball joint assembly is engineered for reliable performance in Chevrolet and GMC trucks and SUVs. Designed to restore proper suspension geometry, this assembly ensures stable handling and improved ride quality for your vehicle.

• Compatible with Chevrolet and GMC C20, C20 Suburban, C30, C35, C2500, C2500 Suburban, C3500, G20, G30, P20, P30, P2500, P3500, R20, R20 Suburban, R30, R2500, R2500 Suburban, and R3500 models
• Includes pre-installed ball joint with threaded stud and bolt-in mounting type
• Constructed from durable steel with a black finish for corrosion resistance
• Rubber bushings included to reduce vibration and noise
• Mounting hardware included for straightforward installation

Product Features and Specifications

This suspension control arm and ball joint assembly (part number 520-179) features a forged and cast steel control arm designed to withstand the rigors of daily driving and heavy-duty use. The assembly includes a threaded ball joint stud with a 14 mm thread diameter and a single mounting hole with a 12.3 mm diameter. Rubber bushings are integrated to provide cushioning and reduce road noise, while the black finish offers added protection against corrosion. The control arm measures up to 288.5 mm in width and 237 mm in length, ensuring a precise fit for the specified Chevrolet and GMC models.

Common Applications and Problem Resolution

• Restores proper suspension alignment and handling
• Eliminates clunking or knocking noises from worn ball joints or bushings
• Reduces uneven tire wear caused by faulty control arms
• Improves steering response and vehicle stability
• Addresses suspension component wear in Chevrolet and GMC trucks and SUVs

Installation Notes and Tips

Installation of the Dorman 520-179 control arm and ball joint assembly requires basic suspension knowledge and tools. The assembly comes with mounting hardware and pre-installed ball joint for ease of installation. Ensure the vehicle is securely lifted and supported before removal of the old control arm. Torque all bolts to manufacturer specifications and verify proper alignment after installation to maintain optimal handling and tire wear.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The 520-179 control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and performance. This part is backed by Dorman's limited warranty, providing coverage against defects in materials and workmanship under normal use.