The Cognito CLKP-1004.1 4"-6" Lift Kit w/ Bilstein Shocks is a 4-6 Inch non-torsion bar drop Lift Kit Package. Fits 2001-2010 4WD Diesel or Gas engine 1500HD, 2500HD, 3500HD(non dually), and 2001-2012 4WD 2500 Suburban and Yukon XL.
Front CV Driveline required if vehicle will be operated in 4WD frequently and/or over 20 MPH in 4wd, sold separately p/n DRIVELINE-3194-9800. Carrier bearing spacer will be needed if the rear driveline is 2 piece typical of crew cab long bed trucks, sold separately p/n CBSK2-3. Front heavy duty swaybar highly recommended for safety sold separately p/n SWAYBAR-8239. 33" dia 12.5" wide tire max on 8"-10" wide wheel with 4.35"-5.15" backspacing.
This package is to run front lift height at 4-5", for 6" lift height, must add Cognito upper control arm kit, torsion bar key kit, and taller rear lift block. This package includes: -'FSLK100407' front box kit including PISK2008 pitman/idler arm support kit -(2) 'BILSTEIN-4NTBDFK-GM8L-2001' front Bilstein shocks -(2) 'BILSTEIN-4R-GM8L' rear Bilstein shocks -'BUK10-2.0T-12' 2" block and u-bolt kit. Will not fit on Dually applications.