CSK-C23-11.1 / CSK-C23-11.1 - Application Notes CST 6-8" Lift Kit - CST Shocks (No Torsion Keys Included - At 8" Ride Quality May Suffer) 1999-2006 Chevrolet Silverado 4WD (Torsion Vehicles) 1999-2006 GMC Sierra 1500 4WD (Torsion Vehicles) Kit Includes: - Sub Frame - Related Bracketry - Steering Stabilizer - Hardware - Necessary Rear Lift Components - CST Performance Shocks - Front Driveshafts