ACDelco 45D10566 Professional Rear Driver Side Upper Suspension Control Arm and Ball Joint Assembly

The ACDelco 45D10566 Professional is a rear driver side upper suspension control arm and ball joint assembly engineered as a high-quality replacement for worn original equipment components. As part of the ACDelco Gold (Professional) line, this assembly is backed by General Motors and manufactured to meet specifications for fit, form, and function on GM vehicles as well as most other makes and models.

The control arm serves as the critical link between your vehicle's steering knuckle and its frame, while the integrated ball joint allows the suspension to pivot and articulate smoothly. Together, they keep the vertical motion of your wheels properly synchronized with the vehicle body for stable, predictable handling.

Key Features:

• OE-Quality Replacement: Manufactured to meet or exceed original equipment specifications for fit, form, and function
• CNC-Machined Housing: Precision machining ensures consistent quality and dimensional accuracy
• Greaseable Design (where applicable): Allows fresh lubricant to flush out contaminants, helping reduce corrosion and extend service life
• Polychloroprene (Neoprene) Boot: Durable boot protects the ball joint from dirt, moisture, and debris
• Coated, Heat-Treated Stud: Resists corrosion and provides added strength where applicable
• Includes All Hardware: Complete assembly ready for installation
• GM-Backed Quality: Part of the ACDelco Gold (Professional) line, supported by General Motors

The ACDelco 45D10566 is a direct-fit, ready-to-install assembly designed to restore proper suspension geometry and handling confidence. Note: Some ACDelco Gold parts may have formerly appeared under the ACDelco Professional name.