Features:Part number: KR6693.Placement on vehicle: left, right, front, lower.Compatibility: this ball joint is compatible for Chevrolet Silverado 2500HD/3500HD 2001-2010, compatible for GMC Sierra 2500HD/3500HD 2001-2010, compatible for Hummer H2 2001-2010.Strong material: the ball studs are heat processed to match or exceed original requirements to inhibit premature failure and enhance fatigue strength.Absorbs impact: preload washer helps keep the bearing package tight as bearings wear.High performance: metal-to-metal design provides strength and allows grease to flow through bearing surface for reduced friction and long life. Factory style, easy to install.Notice: fits either right or left lower control arm. This ball joint is pre-greased.Specification:Pro.