METCO 2005 & Newer Ford Mustang, Shelby GT500 The Metco Motorsports high performance lower control arms for the new Mustang are CNC-machined from 6061-T6511 billet aluminum for unsurpassed strength and precision-fit. The control arms are clear-anodized for long-lasting surface protection. Our control arms are designed to be installed as a direct replacement for the factory control arms, but offer the benefits of the dramatically stronger billet design and a specific combination of Delrin and Energy Suspension-brand bushings. The polyurethane bushings combined with the high-performance Delrin bushings provide unmatched durability while maintaining a ride quality befitting a high performance vehicle. Each bushing has a grease fitting for long term, noise-free service, and the Metco arms require no modifications to the vehicle for installation. Detailed installation instructions are included.