The Mevotech GS30172 Front Left Upper Control Arm and Ball Joint Assembly is engineered to restore the original performance, handling, and ride quality of Nissan Frontier models from 1998 to 2004. This assembly is designed to address common suspension issues such as uneven steering, squeaking noises, and excessive tire wear, thereby enhancing vehicle stability and alignment. Constructed with a corrosion-resistant finish, it ensures durability and longevity, even under demanding driving conditions. The assembly includes a pre-greased ball joint, reducing installation time and providing immediate operational readiness. With a length of 10 inches and a width of 11 inches, it offers a precise fit for the specified vehicle models. This control arm and ball joint assembly is a direct replacement for the original equipment, meeting or exceeding OE specifications, and is backed by a 5-year or 60,000-mile limited warranty, whichever occurs first.