The Cognito 3" Performance Leveling Kit for 2001–2013 Chevy and GMC Silverado/Sierra 2500/3500 HD includes SM Series ball joint upper control arms, torsion bar adjuster keys, front and rear Fox 2.0 Performance Series IFP shocks and front shock spacers to yield three inches of front lift while maximizing droop travel. The bundled components are engineered to improve ride quality, handling and drivability. Made in the USA.
Cognito 01-13 Chevy/GMC Silv/Sierra 2500/3500 HD 2WD/4WD 3in Perf Leveling Kit w/ Fox PS 2.0 IFP