Dorman 520-117 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 520-117 suspension control arm and ball joint assembly is engineered for reliable performance in select Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac vehicles. Designed to restore proper suspension function, this assembly is pre-greased and includes all necessary mounting hardware for a straightforward installation.

• Pre-greased control arm and ball joint for immediate use
• Includes rubber bushings and mounting hardware
• Steel construction with casting/forged control arm type
• Press-in ball joint with threaded stud for secure fitment
• Compatible with multiple GM models including Buick LeSabre, Chevrolet Impala, Pontiac Firebird, and Cadillac DeVille

Product Features and Specifications

This suspension control arm and ball joint assembly features a light suspension grade type suitable for regular driving conditions. The control arm is constructed from durable steel with a black finish, measuring up to 288.5 mm in width and 237 mm in length. Rubber bushings are included to reduce vibration and noise, while the ball joint is installed and ready to use. The ball joint mounting type is press-in, with a threaded stud having a 14 mm thread diameter. One mounting hole with a diameter of 12.3 mm is provided, and all necessary mounting hardware is included for a complete replacement.

Compatible Vehicles and Applications

This Dorman 520-117 assembly is compatible with a range of GM vehicles, including Buick models like the LeSabre and Century, Cadillac DeVille and Fleetwood, Chevrolet Impala and Caprice, Oldsmobile Delta 88 and Cutlass, as well as Pontiac Firebird and Bonneville. It is designed to meet the suspension needs of these vehicles, ensuring proper alignment and handling.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Loose or failing ball joints leading to uneven tire wear
• Excessive suspension noise or vibration
• Misalignment affecting vehicle handling and safety
• Corroded or weakened control arm compromising suspension integrity

Installation Notes and Tips

Installation of the Dorman 520-117 control arm and ball joint assembly requires basic suspension knowledge and tools. Since the ball joint is pre-installed and the control arm is pre-greased, the assembly is ready for immediate installation. Ensure the vehicle is securely lifted and supported before removal of the old control arm. Torque all mounting hardware to manufacturer specifications and verify alignment after installation.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards. The 520-117 control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and fitment accuracy. This product includes a limited warranty covering defects in materials and workmanship, providing confidence in its long-term performance.