Dorman 520-156 Suspension Control Arm and Ball Joint Assembly - Front Right Lower

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 520-156 suspension control arm and ball joint assembly is engineered for reliable performance in Buick Century, Oldsmobile Intrigue, Pontiac Grand Prix, and Regal models. Designed with pre-greased components and included bushings, this assembly ensures smooth suspension operation and long-lasting durability.

• Pre-greased for immediate use and reduced maintenance
• Includes rubber bushings for effective vibration dampening
• Steel construction with casting/forged control arm for strength
• Bolt-in ball joint with threaded stud for secure mounting
• Mounting hardware included for straightforward installation

Product Features and Specifications

This suspension control arm and ball joint assembly (part number 520-156) is designed with a light suspension grade type suitable for regular driving conditions. The control arm measures up to 288.5 mm in width and 237 mm in length, finished in black for corrosion resistance. The assembly includes a ball joint with a 14 mm threaded stud and a 12.3 mm mounting hole diameter, ensuring compatibility with specified vehicle models. Rubber bushings are included to absorb road shocks and reduce noise, while the bolt-in ball joint mounting type simplifies replacement.

Compatible Vehicles and Applications

This Dorman control arm and ball joint assembly is compatible with select Buick, Oldsmobile, and Pontiac vehicles, including:

• Buick Century
• Oldsmobile Intrigue
• Pontiac Grand Prix
• Pontiac Regal

It is designed to restore proper suspension geometry and improve handling characteristics for these models.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Ball joint wear leading to uneven tire wear or clunking noises
• Loose or faulty suspension components affecting vehicle alignment
• Vibration and harshness from deteriorated suspension parts
• Corrosion or damage to original control arm compromising safety

Installation Notes and Tips

The Dorman 520-156 assembly comes with all necessary mounting hardware for a direct bolt-in replacement. Since the ball joint is pre-installed and pre-greased, installation time is reduced. It is recommended to inspect related suspension components during installation and perform a wheel alignment afterward to ensure optimal handling and tire wear.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM specifications, providing reliable fit and function. This control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and performance. Warranty coverage details can be obtained from the product documentation or manufacturer.