The Cognito 12-inch Elite lift kit for 2011–2019 Chevrolet and GMC Silverado/Sierra 2500/3500 HD pairs Elka 2.5 reservoir shocks with Deaver rear springs, SM Series upper control arms and a 5-inch block and U-bolt kit to yield 12 inches front and 9 inches rear lift while preserving droop travel. Patented Pitman/Idler support and stainless braided brake lines are included; 4WD operation above 20mph requires a CV driveline.
Cognito 11-19 Chevy/GMC Silv/Sierra 2500/3500 HD 2WD/4WD 12in Elite Lift Kit w/ Elka 2.5 RR Shocks