Fits: 2011 thru 2019 Chevy Silverado/GMC Sierra 2500HD/3500HD LML/L5P Duramax Diesel

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Cognito 4-Inch Performance Lift Kit with Fox PSRR 2.0 Shocks for 11-19 Silverado/Sierra 2500/3500 2WD/4WD. We have bundled everything you need in a lift kit for your GM 2500/3500 with high quality Cognito components. There is no guesswork. Cognito components are engineered, manufactured, and assembled in the USA. The Cognito Non-Torsion Bar Drop Front Lift kit is designed and engineered to offer superior ride quality and corrected CV joint angles. The Cognito Ball Joint SM Series Upper Control Arms add style, function, and performance to your vehicle by correcting the Ball Joint angle for lifted and leveled applications and improving the allowable droop travel for a better ride quality.The control arm kit features boxed sheet metal arms that are welded and powder coated semi-gloss black. Ball joints are included as well as new crush sleeves and polyurethane bushings. The Cognito Pitman and Idler Arm Support Kit: 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 vehicle's pitman and idler arms, which eliminate the forward and rearward movement of the center-link. The Fox 2.0 Performance Series Remote Reservoir shocks contain the latest in shock technology to transform the performance of your truck. The Fox 2.0 Performance Series front shocks are rust resistant and have a metal impact extruded aluminum body to increase cooling capacity. Eliminates oil aeration allowing maximum performance from the factory-tuned, precision valving. They are easy to install and provide a comfortable on-road ride and predictable off-road handling in even the toughest conditions. The Cognito 1-inch Block and U-Bolt Kit includes 1-inch tall powder coated semi-gloss black cast steel blocks and heavy-duty zinc plated U-bolts

Features:

• Yields 4-inches of front lift
• Cognito Block and U-Bolt Kit yields 1-inch of rear lift
• SM Series Ball Joint Upper Control Arms
• Patented Pitman and Idler Arm Support Kit
• Fox 2.0 Performance Series Remote Reservoir Shocks
• Maintains Adequate Droop Travel for Superior Ride Quality
• Levels vehicle front to rear
• Allows for up to a 35x12.5 Tire on a 9-Inch Wide Wheel 5.75-Inch Backspacing
• 13-hour DIY install time
• Made In USA

Notes:

• The installation of a CV style front driveline will be required in order to safely operate the vehicle in 4WD over 20 mph, which is required to minimize driveline vibration that can lead to damaging the transfer case and/or differential. The Cognito Shift Linkage Bracket is included with the driveline.

• Standard freight is only to the lower 48 states. International, HI, and AK, orders will require an additional shipping charge before order is shipped.

Requirements:

• Maximum wheel backspacing is 5”
• Do not use a tire that is more than 4 1/2” wider than the rim width on a 4 3/4” or more backspaced wheel
• Factory 20” wheels will fit with this lift kit, factory 17” and 18” wheels will NOT fit
• Set at 4 to 5” ,suggested tire size is 33” tall and up to 12.5” wide on an 8 to 9” wide rim with 4.25 to 5.0” back spacing
• Set at 5 to 6”, suggested tire size is 34.5” tall and up to 12.4” wide on an 8 to 8.5” wide rim with 5.0” to 5.5” back spacing
• Call Cognito Motorsports with wheel and tire suggestions if necessary
• Trimming of inner fender well and bottom rear of steel fender may be required

Warranty:

• Cognito Warranty Registration