6.0" Suspension System K1500 4WD PickupThe Full-Traction 1999-06 Chevrolet K1500 IFS 4wd 6.0" lift is a complete bolt-on kit and includes the best quality high strength components available. Complete system includes: Front differential drop brackets, cast steering knuckles, 2-piece MIG-welded dual subframes. Dual subframes allow for easier installation than one-piece types. Heavy duty reinforcement skid plate bolts to subframes for increased strength and protection.Torsion bar cross-member drop brackets, billet front axle drive shaft spacers, extended front and rear sway bar links, polyurethane & Delrin bushings, cad plated hardware, Rear leaf springs are computer designed and feature progressive rate, increased payload capability and smooth ride characteristics. Precision laser crafted components and top quality plated hardware means excellent fit, corrosion resistance, and long service life. Powder coat finish. Optional front skid plate available.