Cognito 10"/12" Front Suspension Lift Kit for 2007-2010 Chevrolet and GMC 2500HD / 3500HD 4WD trucks, 2007-2013 2500 4WD SUVs (StabiliTrak). This kit drops the front differential a full 10", and when set to the 10" height the vehicle will retain the stock (original) tie rod and CV axle angles. When adjusted to the 12" height there will be a slight angle increase at the tie rods and CV axles. Front track width is increased by 1.5" per side in order to retain proper caster settings and functional electronic stabilizing control (if StabiliTrak equipped). This kit also includes our patented Cognito Pitman and Idler Arm Support Kit—a must-have upgrade that corrects a design flaw in Chevy and GMC truck steering systems. Sway bar end links and all required mounting hardware are included, and all steel bracketry is finished in semi-gloss black powder coating. Note: Extended Stainless steel braided metric (double crimp) brake lines (StabiliTrak) and wheel-speed sensor extenders are required and included with this kit. This kit is not a complete lift package, so it does not include shocks or rear suspension lift components.