The Cognito 3 Inch Performance Leveling Kit contains everything you need to level your truck or SUV with high quality components.The Cognito 3 Inch Performance Leveling Kit includes the Cognito Ball Joint SM Series Upper Control Arm Kit, Torsion Bar Adjuster Keys, front and rear Fox Performance Series Monotube shocks and front shock spacers to maximize droop travel.The Cognito Ball Joint SM Series Upper Control Arms feature boxed sheet metal arms that are CNC robot welded and finished with a durable semi-gloss black powder coating. Alloy series ball joints are included as well as new crush sleeves and polyurethane bushings.The Cognito Ball Joint SM Series Upper Control Arms adds performance to the Chevy and GMC truck by correcting the ball joint angle for lifted and leveled applications, increasing droop travel, and increasing caster slightly for better highway speed drivability. Cognito components are engineered, manufactured and assembled in the USA.Fox 2.0 Performance Series IFP smooth body shocks contain the latest in shock technology to transform the performance of your Truck or SUV. They use race-proven damping control to provide a comfortable on-road ride and predictable off-road handling in even the toughest conditions. Made in the USA.

This Part Fits:

Year	Make	Model	Submodel
2001-2006	Chevrolet	Silverado 2500 HD	LS
2001-2010	Chevrolet	Silverado 2500 HD	LT
2007-2010	Chevrolet	Silverado 2500 HD	LTZ
2003-2010	Chevrolet	Silverado 2500 HD	WT
2007-2010	Chevrolet	Silverado 3500 HD	LT
2007-2010	Chevrolet	Silverado 3500 HD	LTZ
2007-2010	Chevrolet	Silverado 3500 HD	WT
2001	Chevrolet	Suburban 2500	Base
2001-2013	Chevrolet	Suburban 2500	LS
2001-2013	Chevrolet	Suburban 2500	LT
2007	Chevrolet	Suburban 2500	LTZ
2001-2002	GMC	Sierra 2500	SL
2001-2004	GMC	Sierra 2500	SLE
2001-2004	GMC	Sierra 2500	SLT
2003-2004	GMC	Sierra 2500	WT
2001-2002,2006	GMC	Sierra 2500 HD	SL
2001-2010	GMC	Sierra 2500 HD	SLE
2001-2010	GMC	Sierra 2500 HD	SLT
2003-2010	GMC	Sierra 2500 HD	WT
2001-2002,2006	GMC	Sierra 3500	SL
2001-2006	GMC	Sierra 3500	SLE
2001-2006	GMC	Sierra 3500	SLT
2004-2006	GMC	Sierra 3500	WT
2007-2010	GMC	Sierra 3500 HD	SLE
2007-2010	GMC	Sierra 3500 HD	SLT
2007-2010	GMC	Sierra 3500 HD	WT
2001-2013	GMC	Yukon XL 2500	SLE
2001-2013	GMC	Yukon XL 2500	SLT

The Cognito Alloy Series Tie Rod kit is a Heavy-Duty stock replacement upgrade where the inner joint incorporates an oversized alloy ball and socket. Sold as a Pair. Made in the USA.Note:Due to the larger inner joint, longer sway bar end links may be necessary for stock or lifted vehicles to avoid contact with the sway bar while turning.

This Part Fits:

Year	Make	Model	Submodel
2001-2006	Chevrolet	Silverado 2500 HD	LS
2001-2010	Chevrolet	Silverado 2500 HD	LT
2007-2010	Chevrolet	Silverado 2500 HD	LTZ
2003-2010	Chevrolet	Silverado 2500 HD	WT
2007-2010	Chevrolet	Silverado 3500 HD	LT
2007-2010	Chevrolet	Silverado 3500 HD	LTZ
2007-2010	Chevrolet	Silverado 3500 HD	WT
2001	Chevrolet	Suburban 2500	Base
2001-2013	Chevrolet	Suburban 2500	LS
2001-2013	Chevrolet	Suburban 2500	LT
2007	Chevrolet	Suburban 2500	LTZ
2001-2002	GMC	Sierra 2500	SL
2001-2004	GMC	Sierra 2500	SLE
2001-2004	GMC	Sierra 2500	SLT
2003-2004	GMC	Sierra 2500	WT
2001-2002,2006	GMC	Sierra 2500 HD	SL
2001-2010	GMC	Sierra 2500 HD	SLE
2001-2010	GMC	Sierra 2500 HD	SLT
2003-2010	GMC	Sierra 2500 HD	WT
2001-2002,2006	GMC	Sierra 3500	SL
2001-2006	GMC	Sierra 3500	SLE
2001-2006	GMC	Sierra 3500	SLT
2004-2006	GMC	Sierra 3500	WT
2007-2010	GMC	Sierra 3500 HD	SLE
2007-2010	GMC	Sierra 3500 HD	SLT
2007-2010	GMC	Sierra 3500 HD	WT
2001-2013	GMC	Yukon XL 2500	SLE
2001-2013	GMC	Yukon XL 2500	SLT

The Cognito Ball Joint SM Series Upper Control Arms add style, function, and performance to your vehicle by improving the allowable droop travel for a better ride quality. The boxed sheet metal arms are welded, and powder coated semi-gloss black. Pre-installed maintenance free ball joints and pivot bushings are included.This control arm kit will add performance to the Chevy and GMC truck by correcting the ball joint angle for lifted and leveled applications, increasing droop travel, and also increases caster slightly for better highway speed drivability. These control arms are NOT made with provisions for dual shock mounts. Made in the USA.Note:These control arms are Not made with provisions for dual shock mounts.

This Part Fits:

Year	Make	Model	Submodel
2001-2006	Chevrolet	Silverado 2500 HD	LS
2001-2010	Chevrolet	Silverado 2500 HD	LT
2007-2010	Chevrolet	Silverado 2500 HD	LTZ
2003-2010	Chevrolet	Silverado 2500 HD	WT
2007-2010	Chevrolet	Silverado 3500 HD	LT
2007-2010	Chevrolet	Silverado 3500 HD	LTZ
2007-2010	Chevrolet	Silverado 3500 HD	WT
2001	Chevrolet	Suburban 2500	Base
2001-2013	Chevrolet	Suburban 2500	LS
2001-2013	Chevrolet	Suburban 2500	LT
2007	Chevrolet	Suburban 2500	LTZ
2001-2002	GMC	Sierra 2500	SL
2001-2004	GMC	Sierra 2500	SLE
2001-2004	GMC	Sierra 2500	SLT
2003-2004	GMC	Sierra 2500	WT
2001-2002,2006	GMC	Sierra 2500 HD	SL
2001-2010	GMC	Sierra 2500 HD	SLE
2001-2010	GMC	Sierra 2500 HD	SLT
2003-2010	GMC	Sierra 2500 HD	WT
2001-2002,2006	GMC	Sierra 3500	SL
2001-2006	GMC	Sierra 3500	SLE
2001-2006	GMC	Sierra 3500	SLT
2004-2006	GMC	Sierra 3500	WT
2007-2010	GMC	Sierra 3500 HD	SLE
2007-2010	GMC	Sierra 3500 HD	SLT
2007-2010	GMC	Sierra 3500 HD	WT
2001-2013	GMC	Yukon XL 2500	SLE
2001-2013	GMC	Yukon XL 2500	SLT

Pitman and Idler arms have been an inherent wear problem within the steering systems of Chevy and GMC trucks and SUVs for decades. The Cognito PISK (Pitman and Idler Arm Support Kit) replace the problem components that plague factory and aftermarket steering systems on several models and years of GM trucks and SUVs.These improvements are accomplished through application of Cognito's innovative, patented design, by providing additional support to the vehicles pitman and idler arms, which eliminate the forward and rearward movement of the center-link. Kit includes all necessary mounting hardware.Note:Only for use on stock height or lifted vehicles with the OE center-link in the stock location.This Cognito product is protected by Utility Patent number US 7,475,891 B2 - All Rights Reserved

This Part Fits:

Year	Make	Model	Submodel
2001-2006	Chevrolet	Silverado 2500 HD	LS
2001-2010	Chevrolet	Silverado 2500 HD	LT
2007-2010	Chevrolet	Silverado 2500 HD	LTZ
2003-2010	Chevrolet	Silverado 2500 HD	WT
2007-2010	Chevrolet	Silverado 3500 HD	LT
2007-2010	Chevrolet	Silverado 3500 HD	LTZ
2007-2010	Chevrolet	Silverado 3500 HD	WT
2001	Chevrolet	Suburban 2500	Base
2001-2013	Chevrolet	Suburban 2500	LS
2001-2013	Chevrolet	Suburban 2500	LT
2007	Chevrolet	Suburban 2500	LTZ
2001-2002	GMC	Sierra 2500	SL
2001-2004	GMC	Sierra 2500	SLE
2001-2004	GMC	Sierra 2500	SLT
2003-2004	GMC	Sierra 2500	WT
2001-2002,2006	GMC	Sierra 2500 HD	SL
2001-2010	GMC	Sierra 2500 HD	SLE
2001-2010	GMC	Sierra 2500 HD	SLT
2003-2010	GMC	Sierra 2500 HD	WT
2001-2002,2006	GMC	Sierra 3500	SL
2001-2006	GMC	Sierra 3500	SLE
2001-2006	GMC	Sierra 3500	SLT
2004-2006	GMC	Sierra 3500	WT
2007-2010	GMC	Sierra 3500 HD	SLE
2007-2010	GMC	Sierra 3500 HD	SLT
2007-2010	GMC	Sierra 3500 HD	WT
2001-2013	GMC	Yukon XL 2500	SLE
2001-2013	GMC	Yukon XL 2500	SLT

Torsion bar keys are used to set the ride height of the front of the truck and are commonly used in leveling kits, and it is important to set the height appropriately as to leave ample suspension droop travel to maintain a good ride quality.There are several different torsion bar spring rates that GM made and put in these trucks, the rate depending on the model and features of the truck. Some trucks that have a higher spring rate may not need aftermarket torsion bar adjuster keys to obtain the maximum recommended ride height.This kit is Only used in leveling kit applications as well as lifted applications when the higher setting of that particular lift kit range is desired like taking a 4 Inch Cognito lift kit to the 6 Inch setting.

This Part Fits:

Year	Make	Model	Submodel
2001-2006	Chevrolet	Silverado 2500 HD	LS
2001-2010	Chevrolet	Silverado 2500 HD	LT
2007-2010	Chevrolet	Silverado 2500 HD	LTZ
2003-2010	Chevrolet	Silverado 2500 HD	WT
2007-2010	Chevrolet	Silverado 3500 HD	LT
2007-2010	Chevrolet	Silverado 3500 HD	LTZ
2007-2010	Chevrolet	Silverado 3500 HD	WT
2001	Chevrolet	Suburban 2500	Base
2001-2013	Chevrolet	Suburban 2500	LS
2001-2013	Chevrolet	Suburban 2500	LT
2007	Chevrolet	Suburban 2500	LTZ
2001-2002	GMC	Sierra 2500	SL
2001-2004	GMC	Sierra 2500	SLE
2001-2004	GMC	Sierra 2500	SLT
2003-2004	GMC	Sierra 2500	WT
2001-2002,2006	GMC	Sierra 2500 HD	SL
2001-2010	GMC	Sierra 2500 HD	SLE
2001-2010	GMC	Sierra 2500 HD	SLT
2003-2010	GMC	Sierra 2500 HD	WT
2001-2002,2006	GMC	Sierra 3500	SL
2001-2006	GMC	Sierra 3500	SLE
2001-2006	GMC	Sierra 3500	SLT
2004-2006	GMC	Sierra 3500	WT
2007-2010	GMC	Sierra 3500 HD	SLE
2007-2010	GMC	Sierra 3500 HD	SLT
2007-2010	GMC	Sierra 3500 HD	WT
2001-2013	GMC	Yukon XL 2500	SLE
2001-2013	GMC	Yukon XL 2500	SLT