Dorman 520-237 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 520-237 suspension control arm and ball joint assembly is engineered for reliable performance in Ford and Mazda trucks. Designed specifically for models like the Ford Ranger and Mazda B2300, 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
• Constructed from durable iron with a black finish for corrosion resistance
• Press-in ball joint with pinch stud type, installed and ready to use
• Compatible with Ford B2300, B2500, B3000, B4000, and Ranger, as well as Mazda B2300 and B2500

Product Features and Specifications

This suspension control arm and ball joint assembly (part number 520-237) is designed with a casting/forged iron control arm measuring up to 288.5 mm in width and 237 mm in length. It features a single mounting hole with a diameter of 12.3 mm and includes rubber bushings to absorb road vibrations. The ball joint is pre-installed with a 14 mm thread diameter and uses a press-in mounting type with a pinch stud for secure attachment. The assembly is suspension grade light and comes with all necessary mounting hardware, though it does not include a grease fitting.

Compatible Vehicles and Applications

This Dorman control arm and ball joint assembly is compatible with a range of Ford and Mazda trucks, including:

• Ford Ranger
• Ford B2300, B2500, B3000, B4000
• Mazda B2300, B2500

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

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing excessive play
• Faulty ball joints leading to uneven tire wear or steering issues
• Corroded or bent control arms affecting vehicle alignment
• Suspension noise or clunking during driving
• Reduced vehicle stability and handling performance

Installation Notes and Tips

Installation of the Dorman 520-237 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 direct replacement. Ensure the mounting hole aligns correctly with the vehicle frame and torque all hardware to manufacturer specifications. This part is not adjustable, so proper fitment is critical. It is recommended to have a professional alignment performed after installation.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards. The 520-237 control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and performance. This product includes a limited warranty covering defects in materials and workmanship, providing confidence in its long-term reliability.