[3-Groove] 4x4 12-Piece Front Suspension Kit - 2 Upper Control Arm & Ball Joints, 2 Lower Ball Joint, Both (2) Idler Arm & Pitman Arm [3-Groove] 1500 Trucks only - 6-Lugs Wheels Only Silverado & Sierra 4x4 Models Only - 6-Lugs Wheels Only Lower Ball Joints fit Steel Control Arms Only Both (2) Front Stablizer Sway Bar End Links Both (2) Front Ider Arm Assembly + Front Steering Pitman Arm [3-Groove] Highest Quality - 10 Year Warranty - Same Day Shipping