Ideal for street and race applications, Skunk2 Rear Lower Control Arms replace your stock arms while retaining factory suspension geometry. The Skunk2 Rear Lower Control Arms are forged from aircraft quality AL2024 billet aluminum, precision CNC machined and are over 25% lighter than stock arms. Skunk2 Lower Control Arms feature adjustable sway bar mounting holes so you can fine tune the feel and balance of the rear suspension, and also feature low deflection polyurethane bushing which act as bearings for quicker response and a more positive feel. By allowing the arm to rotate freely about the bushing, Skunk2 eliminated the tearing and unseating commonly found with fixed rubber bushings. LONGER BOLTS NEEDED TO ACHIEVE GREATER STRENGTH: In order to make the aluminum are stronger than the factory arm, it is necessary to increase the cross sectional thickness of the aluminum arm in the mounting are. But this cannot be properly achieved unless a longer bolt is provided. If the cross sectional thickness was increased using the stock bolt, the thread engagement would be insufficient. MOUNTING PLATES NEEDED TO PREVENT ALUMINUM DEFORMATION: This applies to the DC5, EP3, and Element Lower Control Arms. When a steel bolt is tightened directly onto aluminum, there is a tendency for the aluminum to deform over time because of the higher point load applied to the material; in otherwords, the bolt will loosen over time as the material beneath it compresses. To prevent this from happening, Skunk2