Dorman 528-355 Suspension Control Arm and Ball Joint Assembly - Front Left Lower Rearward

Reliable Suspension Control Arm and Ball Joint Assembly

The Dorman 528-355 suspension control arm and ball joint assembly is engineered for precise fitment on Cadillac ATS and CT4 models. Designed with durable steel construction and pre-greased components, this assembly supports smooth suspension operation and vehicle stability.

• Pre-greased for immediate use without additional lubrication
• Includes rubber and steel bushings for effective vibration dampening
• Machined ball joint with threaded stud for secure mounting
• Steel control arm with casting/forged design for strength and durability
• Compatible with Cadillac ATS and CT4 suspension systems

Durable Construction and Design Features

This suspension control arm and ball joint assembly from Dorman features a black steel control arm with a maximum length of 265 mm and a width of 58.3 mm, providing a robust foundation for suspension components. The assembly includes a machined ball joint with a 14 mm thread diameter and a 20.6 mm stud length, ensuring a precise and secure fit. Rubber and steel bushings are integrated to reduce noise and absorb road vibrations, contributing to a smoother ride. The control arm is pre-greased and ready for installation, eliminating the need for additional lubrication during setup.

Compatible Vehicles and Part Number Details

This part is specifically designed for Cadillac ATS and CT4 models, ensuring compatibility with their suspension systems. The Dorman 528-355 assembly is a direct replacement part that meets regular suspension grade requirements for light-duty applications. Its non-adjustable design and single mounting hole with a 12.2 mm diameter simplify installation and alignment.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Ball joint wear leading to uneven tire wear or clunking noises
• Vibration and noise from deteriorated suspension components
• Loose or misaligned suspension affecting vehicle handling
• Corrosion or fatigue in original control arm compromising safety

Installation Notes and Tips

Before installation, verify the part number 528-355 matches your vehicle’s requirements. The assembly comes pre-greased and does not require additional lubrication. Use appropriate tools to torque the threaded ball joint stud and mounting hardware to manufacturer specifications. Since the control arm is non-adjustable, ensure proper alignment is performed after installation to maintain suspension geometry.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet industry standards for durability and performance. This control arm and ball joint assembly undergoes quality checks to ensure fit and function. While specific warranty details are not provided, Dorman parts typically carry a limited warranty against defects in materials and workmanship.