We’ve taken one of our best-selling leveling kit combinations and prepackaged it into a single box with a single part number that includes all of the optimal components to level your 2011-2019 GM 2WD/4WD 2500HD/3500HD truck the Cognito way.
The kit includes:
Cognito Ball Joint SM Series Upper Control Arm Kit
Torsion Bar Adjuster Key Kit
1” Front Shock Extender Kit
Cognito Sticker Pack
Application: 2011-2019 Chevy/GM 2wd/4wd 2500HD & 3500HD including dually
Our Starter stage package is really what we feel is the starting point any truck owner should consider. Although this stage is not the least expensive direction, you will find this stage is a great foundation to becoming happy with performance of your suspension.
Features & Benefits:
A must when Leveling your vehicle right
Corrected ball joint angle to withstand higher control arm operating angles
28% more suspension travel can be achieved over stock
Bolt in ball joint style bolts in secure and is an easy installation
These UCA were designed with extra caster to your steering geometry to provide better drivability on highway.
Will work on Stabilitrack year trucks.
Does NOT widen front track width.
Does NOT change towing ability.
No cutting or welding required.
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 4.75"-5.25"
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.
There are many wheel and tire combinations that "can work" on this package (some better than others) 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-up new body style trucks slight to large amount of trimming may be required depending on your wheel and tire combo. NCT.com has instructions on a very clean DIY fender mod that is available if requested with your purchase to better help you gain tire clearance.
Over-Cranking the suspension and reducing the ride height drop travel will affect the ride quality, and is not recommended.
The distance between the center hub and fender should be NO-MORE than 27" 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 between a 1"-1.5" to retain a factory looking stance or "rake".
2011 Chevy 2500HD with the Cognito Performance Leveling Kit, Factory keys running Toyo M/T 275/70r18 (33.27x10.94) on a 18x9 4.5" bs wheel, plus NCT Large fender mod.
Height x Length x Width (DIM):
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