Dorman 528-348 Suspension Control Arm and Ball Joint Assembly - Front Left Upper or Front Right Upper

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 528-348 suspension control arm and ball joint assembly is engineered for reliable performance in select GM trucks and SUVs. Designed with pre-greased components and grease fittings, this assembly supports smooth suspension movement and long-lasting durability.

• Pre-greased for immediate use and reduced maintenance
• Includes grease fitting for easy lubrication
• Light suspension grade type suitable for regular driving conditions
• Steel control arm with black finish for corrosion resistance
• Press-in ball joint with threaded stud for secure mounting
• Rubber and steel bushings included for vibration dampening
• Mounting hardware included for straightforward installation
• Two mounting holes with 14.5 mm diameter for precise fitment
• Control arm dimensions: maximum length 240 mm, maximum width 362.5 mm

Product Details and Specifications

The Dorman 528-348 control arm and ball joint assembly is constructed from forged and cast steel, providing structural strength required for suspension components. The assembly comes pre-greased and includes a grease fitting (zerk) to allow for ongoing lubrication, extending the life of the ball joint and bushings. The ball joint is press-in mounted with a 12 mm thread diameter and 20 mm stud length, secured with a castle nut and cotter pin included in the package. Rubber and steel bushings help absorb road vibrations and maintain suspension alignment. This assembly is designed for light suspension grade applications, making it suitable for daily driving and moderate load conditions.

Compatible Vehicles and Applications

This suspension control arm and ball joint assembly is compatible with a range of General Motors vehicles, including:

• Cadillac Escalade, Escalade ESV, Escalade EXT
• Chevrolet Avalanche 1500, Silverado 1500, Silverado 1500 Classic, Suburban 1500, Tahoe
• GMC Sierra 1500, Sierra 1500 Classic, Yukon, Yukon XL 1500
• Chevrolet Express 1500, Express 2500
• GMC Savana 1500, Savana 2500

Use the Dorman 528-348 for suspension repairs or upgrades on these models to restore proper steering and suspension function.

Common Suspension Issues Addressed

• Excessive play or looseness in the front suspension
• Uneven tire wear caused by worn control arm bushings
• Clunking or knocking noises during driving over bumps
• Poor steering response or alignment problems
• Vibration or instability at higher speeds

Installation Notes and Tips

Before installation, verify vehicle compatibility with the Dorman 528-348 part number. The assembly includes mounting hardware such as a castle nut and cotter pin for the ball joint. Ensure the grease fitting is accessible for future maintenance. Use proper torque specifications for mounting bolts and ball joint stud to maintain safety and performance. Regularly inspect and lubricate the grease fitting to prolong component life.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit and function. The 528-348 assembly undergoes quality checks to ensure durability and reliability. While specific warranty details are not provided, Dorman typically offers limited warranties covering defects in materials and workmanship. Consult product documentation for exact warranty terms.