Dorman 520-126 Suspension Control Arm and Ball Joint Assembly - Front Right Lower

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 520-126 suspension control arm and ball joint assembly is engineered for reliable performance on Chevrolet and GMC trucks. Designed specifically for the Sierra 1500, Sierra 1500 Classic, Silverado 1500, and Silverado 1500 Classic models, this assembly ensures proper suspension function and vehicle stability.

• Pre-greased for immediate installation and smooth operation
• Includes rubber bushings and mounting hardware for a complete replacement
• Steel construction with casting/forged control arm for strength and durability
• Bolt-in ball joint with threaded stud for secure mounting
• Compatible with light suspension grade applications

Product Features and Specifications

This suspension control arm and ball joint assembly (part number 520-126) features a black steel control arm measuring up to 288.5 mm in width and 237 mm in length. The assembly includes a pre-installed ball joint with a 14 mm threaded stud and a 12.3 mm mounting hole diameter. Rubber bushings are included to reduce vibration and noise, while the mounting hardware simplifies installation. The assembly is designed for bolt-in installation without adjustment, suitable for regular grade suspension systems on Chevrolet and GMC full-size pickup trucks.

Compatible Vehicles and Applications

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

• Chevrolet Sierra 1500 and Sierra 1500 Classic
• GMC Sierra 1500 and Sierra 1500 Classic
• Chevrolet Silverado 1500 and Silverado 1500 Classic
• GMC Silverado 1500 and Silverado 1500 Classic

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Loose or failing ball joints leading to uneven tire wear
• Suspension noise due to degraded components
• Misalignment resulting from bent or cracked control arms
• Reduced vehicle handling and ride comfort

Installation Notes and Tips

The Dorman 520-126 assembly comes pre-greased and includes all necessary mounting hardware, allowing for straightforward bolt-in installation. No grease fitting is included, so no additional lubrication is required during installation. Ensure proper torque specifications are followed for mounting bolts and ball joint stud to maintain safety and performance. This assembly is not adjustable, so alignment should be checked after installation.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The 520-126 control arm and ball joint assembly undergoes rigorous quality control to ensure durability and reliability. While specific warranty details vary, Dorman typically offers limited warranties covering defects in materials and workmanship. Refer to Dorman’s official documentation for exact warranty terms.