ACDelco Gold (Professional) Suspension Track Bars are a high quality alternative to Original Equipment (OE) parts. These bars prevent lateral motion of the rear axle. 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.