Dorman 520-146 Suspension Control Arm and Ball Joint Assembly - Front Right Lower

Reliable Suspension Control Arm and Ball Joint Assembly

The Dorman 520-146 suspension control arm and ball joint assembly is designed for precise fitment on select Oldsmobile and Pontiac models. Engineered with durable steel and pre-greased components, this assembly supports smooth suspension operation and vehicle stability.

• Pre-greased for immediate use without additional lubrication
• Includes rubber bushings and mounting hardware for complete installation
• Bolt-in ball joint with threaded stud for secure attachment
• Constructed from forged and cast steel for strength and durability
• Compatible with Oldsmobile Montana, Pontiac Silhouette, and Pontiac Trans Sport

Durable Construction and Design Features

This suspension control arm and ball joint assembly (part number 520-146) features a black-painted steel control arm with a maximum length of 237 mm and width of 288.5 mm. The assembly includes rubber bushings that help absorb road vibrations and reduce noise. The ball joint is installed and ready to bolt in, featuring a 14 mm threaded stud and a 12.3 mm mounting hole diameter for precise fitment. The assembly is designed for light suspension grade applications, suitable for regular driving conditions on compatible Oldsmobile and Pontiac vehicles.

Compatible Vehicles and Applications

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

• Oldsmobile Montana
• Pontiac Silhouette
• Pontiac Trans Sport

It is intended for use in suspension repairs where the control arm or ball joint shows signs of wear or damage, restoring proper suspension geometry and vehicle handling.

Common Suspension Issues Addressed

• Excessive play or looseness in the suspension control arm
• Worn or damaged ball joints causing steering instability
• Noise or vibration from deteriorated bushings
• Uneven tire wear due to misaligned suspension components
• Reduced vehicle handling and ride comfort

Installation Notes and Tips

The Dorman 520-146 assembly comes pre-greased and includes all necessary mounting hardware for straightforward installation. The bolt-in ball joint design simplifies replacement without the need for press tools. Ensure proper torque specifications are followed during installation to maintain suspension integrity. This assembly is not adjustable, so alignment should be checked and corrected after installation.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards. The 520-146 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 limited warranties covering defects in materials and workmanship.