Cognito 3-Inch Performance Leveling Kit With Fox PS 2.0 IFP Shocks for 01-10 Silverado/Sierra 2500-3500 2WD/4WD


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.

Each Kit Features:

  • Yields 3 inches of front lift
  • Cognito Ball Joint SM Series Upper Control Arm Kit
  • Torsion Bar Adjuster Key Kit
  • Fox 2.0 Performance Series Monotube Front Shocks
  • Fox 2.0 Performance Series Monotube Rear Shocks


Most commonly used for:

  • Daily Driver
  • Larger tires
  • Larger wheels
  • Light-Mild-Heavy size towing (Heavy Haulers add Helper Bags to maintain Level Stance)
  • Camping, Fire Roads & Mild Off Road


Tire & Wheel Fitment:

  • Recommended maximum tire size for BEST results - 33" Tall x 11.50" wide tire. 
  • Recommended maximum aftermarket wheel for BEST results - 9" wide with backspacing between 5.0"-5.7" - Less Back space the farther the wheel/tire will stick out, more back space will pull the tire/wheel in towards the suspension.
  • The key is to keep the wheel and tire combo from sticking out of the wheel opening so you have little to no rubbing on the fender and/or bumper when turning. Avoiding too large of a backspace is also a key in eliminating rubbing, so that your tire is not close to the UCA area.
  • 2001-2007 Classic Body Chevy/GM trucks have a larger wheel opening, on 2007.5-2010 new body style trucks slight to large amount of trimming may be required depending on your wheel and tire combo. has instructions on a very clean DIY fender mod that is available if requested with your purchase to better help you gain tire clearance. 
  • Dual rear wheel trucks will fit up to a 33" Tall x 11.50" wide tire on factory wheels, but will require a rear wheel spacer between the dual wheels.



  • Over-Cranking the suspension will reduce the ride height drop travel. This will affect the ride quality and is not recommended.
  • The distance between the upper control arm and frame drop stop should be NO-LESS than 5/8" distance at ride height.
  • A "Leveling" kit is designed to level a HD truck, but if you would like to add a block to the rear to regain a "rake" stance you can. We recommend 1" to retain a factory  looking stance or "rake".
  • Please check your pitman and idler steering arms for any slop or movement, please replace if excessive wear is found.



  • DIYer common install time 4-6 Hours (Pending added upgrades)
  • Have the vehicle professionally aligned according to the alignment specifications located in the installation instructions.
Alignment Specifications:  
  • Caster, +4.0 to +6.0 degrees with .8 degree caster split optimal for average road crown.
  • Camber, 0.0 to + .2 degrees, with both sides equal.
  • Toe, 1/16” to 1/8” toe in, or stock toe setting.

Are you doing the install yourself? All customers get exclusive private tech support by someone that has direct install knowledge with this product, so you can purchase with confidence and perform your own install.


Additional Options to consider adding to your package: 


"Black Shock Boots"- We offer black shock boots for the Fox Performance Series shocks. Shock boots are not needed but are a great upgrade if you are a truck owner in a bad climate area that will be driving on bad road conditions.

 "Performance Compression bump stop"- To gain the ultimate ride we suggest you take a look at your factory compression bump stops, if they are old and dried out or falling apart or even missing these replacement bump stops will come in handy and be better than a standard factory compression stop. Made with a better material to provide a smoother ride.  

"Key Unloading Tool"- This tool is a safe and easy way to remove the torsion bar adjustment keys. This is not a common tool most installers will have.   

"Replacment Idler & Pitman Arms"-  It is suggest that you check your current pitman and idler arms for wear, the Cognito Steering Braces should be installed on Pitman and Idler arms that are in good condition with no slop or movement in the ball and socket. Add these if you would like to start with a fresh new set. 

 "Steering Stabilizer"- Our #1 seller would be the Bilstein Stabilizer. We have many truck onwers happy with the results by adding the upgraded stabilizer to one of these leveling packages. 

"Block & Ubolt" kit options, this package is designed to level the front of a HD but if you would like to retain the "rake" stance you may add a rear block & ubolt kit to lift the rear. Please note that the leveling package WILL NOT level the front to match the rear truck height if adding a block & ubolt kit. Block & Ubolt kits are not recommended to be used if installing this leveling package on a Dually rear wheel truck, they already sit higher than a single rear wheel truck. ** SUBURBAN & YUKON XL 2500 - These will need a 1" Block & U-Bolt kit to keep them at level height as they are level factory. The Suburban in the pictures above is using the 1" Block & U-Bolt Option. 

"Sulastic Shackles" - A great option to upgrade the rear of a HD with. They provide a better highway comfort out of the rear of the truck by acting as a isolator to keep the harsh heavy leaf spring ride from continuing threw the truck chassis to the cab and into the drivers seat. End results are a smoother ride quality for the driver as well as passengers including a major comfort upgrade for the rear seat passengers, now your family and friends can enjoy those long rides. 


Feature video: 


2010 Chevy 2500HD Duramax Crew Cab Short box. This truck has our Off Road Leveling packages with Fox Shox plus a few extra add on's like Sulastic Shackles and Front & Rear Sway Bar upgrades. Tire Size is 285/70r17 on a 17x8 4.5bs and we also added a NCT Fender Mod for added clearance for the tires for off road use.

Watch our Leveling Package working, notice full movement of suspenion: 

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