Notice: Fits Models with 3-Groove Pitman Arm; Not Fit Models with Rack & Pinion Steering Exceptional Compatibility: Our Front End Suspension Kits are fully OEM compliant and will fit your vehicle perfectly. They can compatible with 2001-2010 Chevy Silverado GMC Sierra 2500 HD, Chevy Suburban 2500, Yukon XL 2500. 2001-2004 Chevy Silverado GMC Sierra 2500, 2001-2006 Chevy Silverado GMC Sierra 3500. (w/o Frame Bracket) Exceptional Compatibility: Our Front End Suspension Kits are fully OEM compliant and will fit your vehicle perfectly. They can compatible with 2001-2003/ 2005-2006 Chevy Silverado GMC Sierra 1500 HD, 2007 Chevy Silverado 1500 HD Classic (Old Body Style Only). 2002-2006 Chevy Avalanche 2500, 2007-2010 Chevy Silverado GMC Sierra 3500 HD, 2003-2007 Hummer H2. (w/o Frame Bracket) Comprehensive Front Suspension Upgrade Kit: This 12-piece set includes control arms, tie rods, and other vital components, ensuring a full suspension system overhaul for improved vehicle performance. High-Quality Polyurethane Bushings: OEM rubber bushings will break down over the years, causing excessive tire wear and erratic braking performance, which may even threaten your driving safety. The PU bushings used in our front suspension kits are a great solution to this problem. The PU bushings have the advantages of prolonging the life of the tires, reducing deformation, improving responsiveness, shortening the braking distance, enhancing performance and improving safety, which ensures your driving safety and allows you to drive with confidence. Suspension Kit Includes: 2x Front Lower Ball Joints - K6693, 2x Front Upper Control Arm w/ Ball Joints - K620054PU, 2x Front Sway Bar End Links - K80631PU, 1x Front Steering Pitman Arm - K6654 [w/ 3 Groove Splines], 1x Front Idler Arm - K6535, 2x Front Outer Tie Rod Ends - ES3609, 2x Front Inner Tie Rod Ends - ES3488. 12PCS Front Upper Control Arms Tie rods Suspension Kit for 01-10 Silverado Sierra 2500 3500