SuperPro's fitter friendly complete front lower control arms offer not only a significant performance and durability upgrade - they also offer an easy DIY or professional install. No pressing in new bushings - these arms arrive fully assembled with pre-installed SuperPro bushings. We've worked hard to make these a huge bang-for-the-buck upgrade with fully upgraded and outfitted arms offering a front end refresh for your ride! SuperPro Tip Designed and packaged to be replaced as a pair. SuperPro maintains it is critical for a pair to installed to any application at the same time to avoid any detrimental handling and braking characteristics from a mismatch of bushing material.