The Mevotech GS25135 Front, Driver Side, Upper Control Arm Assembly is engineered to restore the suspension geometry of 1983 Dodge B150 vehicles with a 4000 lb Gross Vehicle Weight (GVW). This assembly includes a pre-installed ball joint, bushings, and all necessary hardware, facilitating a straightforward installation process. Designed as an OE replacement, it ensures compatibility and performance, meeting or exceeding original equipment specifications. The assembly is pre-greased, reducing maintenance needs and enhancing durability. Mevotech's commitment to quality is evident in the inclusion of a 5-year or 60,000-mile limited warranty, underscoring the product's reliability and longevity.