Durable One-Piece Design. Take your truck to the next level with Rough CountryCOs most durable Upper Control Arm to date! Rough CountryCOs Forged Upper Control Arms feature a solid, 1-piece design made of forged aluminum for superior strength and durability. This forged design outperforms all other types of arm construction, with no welding weak spots that could bend or break.\ High Strength Ball Joints. Rough CountryCOs Forged Upper Control Arms use POM ball joints which reduces metal-to-metal contact for less maintenance and longer service life versus standard or OE replacements. These Ball joints feature a POM ball race for an extremely low co-efficient of friction and an oversize ball diameter reduces load and improves range of motion in a fully greaseable design. Rough CountryCOs Forged Upper Control Arms also feature durable rubber bushings rubber bushings for superior quality and durability.\ Installation. Featuring a 100% bolt-on installation process, an estimated timeframe of 3-4 hours is recommended to complete this full installation. This full kit can be installed at home and can be completed efficiently and quickly!\ Limited Lifetime Replacement Warranty. Rough Country's Forged Aluminum Control Arms are backed with a limited lifetime replacement warranty towards manufacturer defects. As such, the product is protected from structural and workmanship damage after the date of purchase. With our industry-leading warranty give yourself peace of mind when using Rough Country's Suspension products!