ACDelco Gold (Professional) Suspension Trailing Arms are a high quality alternative to Original Equipment (OE) parts. These trailing arms connect the axle to your vehicle's chassis and helps control the fore, aft, and lateral movement of your vehicle's suspension while driving. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.