Dorman 520-183 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Reliable Suspension Control Arm and Ball Joint Assembly

The Dorman 520-183 suspension control arm and ball joint assembly is designed for light suspension applications on Chevrolet and GMC heavy-duty trucks. Engineered with durable steel construction and pre-greased components, this assembly ensures dependable performance for models like the Chevrolet C30 and GMC P3500.

• Pre-greased for immediate installation and reduced maintenance
• Includes rubber bushings and mounting hardware for a complete replacement
• Press-in ball joint with threaded stud for secure fitment
• Steel control arm with black finish for corrosion resistance
• Compatible with Chevrolet C30, C3500, P30, P3500, R30, and R3500 models

Durable Construction and Design Features

This suspension control arm and ball joint assembly from Dorman is crafted from forged and cast steel, providing strength and rigidity required for light suspension grade applications. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to absorb vibrations and reduce noise, while the press-in ball joint with a 14mm threaded stud ensures a secure and precise fit. The control arm measures up to 288.5 mm in width and 237 mm in length, with a single 12.3 mm mounting hole for straightforward installation.

Compatible Vehicles and Applications

This Dorman 520-183 assembly is compatible with a range of Chevrolet and GMC heavy-duty trucks, including the Chevrolet C30, C3500, and R30, as well as the GMC P30, P3500, and R3500. It is designed specifically for light suspension grade use, making it suitable for vehicles requiring reliable suspension control arm replacements without adjustable features.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Ball joint wear leading to uneven tire wear or clunking noises
• Corrosion or fatigue in original control arm components
• Loose or damaged mounting hardware affecting suspension alignment
• Reduced suspension performance impacting vehicle handling

Installation Notes and Tips

Installation of the Dorman 520-183 control arm and ball joint assembly requires basic suspension tools. Since the ball joint is pre-installed and press-fit, no separate ball joint installation is necessary. Ensure the mounting hole aligns correctly with the vehicle frame and torque all hardware to manufacturer specifications. Although the assembly is pre-greased, periodic inspection of bushings and ball joints is recommended for long-term maintenance.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 520-183 suspension control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship.