Features: Part number: KR6693. Placement on vehicle: left, right, front, lower. Compatibility: this ball joint is compatible for S-ilverado 2500HD/3500HD 2001-2010, compatible for GMCSierra 2500HD/3500HD 2001-2010, compatible for Hummer H2 2001-20104. 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: Pr.