SKU: COG110-P1422

4" Performance Lift Kit with Cognito 2.0" RR Shocks & SM Series UCAs

Typical shipping in 5-7 business days
Confirmed fitment below
YEARS
2020-2026
MAKE / MODEL
GM/GMC/Chevrolet / Silverado/Sierra
SERIES
2500HD/3500HD
ENGINE
6.6L Duramax L5P
Price
$5,149.95
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PRODUCT DETAIL

Key Features & Description

Features:

  • Provides 4 inches of front lift
  • Provides 2 inches of rear lift
  • Fits 2020-2026 GM Silverado/Sierra 2500HD/3500HD 2WD/4WD
  • Cognito 2.0 remote reservoir shocks included
  • SM Series upper control arms included
  • Corrected ball joint angles improve suspension geometry
  • Maintains droop travel for improved ride quality
  • Corrects CV angles without torsion bar drop
  • Patented steering support reduces center-link movement
  • Remote reservoirs improve shock heat dissipation
  • Precision valving delivers predictable suspension control
  • Heavy-duty rear blocks and U-bolts included
  • Engineered and assembled in the USA

Give Your GM HD The Stance And Control It Deserves

Getting your heavy duty truck sitting higher is one thing, but making sure it still drives the way you want is where the Cognito 110-P1422 Performance Lift Kit earns its place. Built for 2020-2026 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD trucks, this package delivers 4 inches of front lift along with 2 inches of rear lift for a taller and more purposeful stance. Cognito pairs the added height with its 2.0 Remote Reservoir Aluminum Shocks, giving the suspension the control it needs for comfortable highway miles and predictable performance when the pavement ends. The included SM Series Upper Control Arms correct the ball joint angle while maintaining adequate droop travel, helping the suspension move naturally instead of sacrificing ride quality just to gain clearance. You also get Cognito's patented Pitman and Idler Arm Support Kit, which adds support to known wear points in the GM steering system and helps eliminate unwanted forward and rearward center link movement. Additionally, the rear receives sturdy 2 inch cast steel blocks finished in semi gloss black along with heavy duty zinc plated U bolts, rounding out the package with components designed for long term use. With the major suspension, steering, and shock upgrades bundled together, this kit takes much of the guesswork out of building a properly engineered lifted GM HD.

Smarter Suspension Geometry Starts With The Right Components

The Cognito 110-P1422 takes a more complete approach to lifting your GM HD by addressing suspension geometry, steering support, and damping performance together. Its non torsion bar drop front suspension design provides 4 inches of lift while correcting CV joint angles, allowing the truck to gain height without relying on a dropped torsion bar configuration. Cognito SM Series Upper Control Arms use welded boxed sheet metal construction with a semi gloss black powder coated finish, plus maintenance free ball joints and pivot bushings that arrive preinstalled. Corrected ball joint positioning increases allowable droop travel for lifted applications, which helps preserve suspension movement and contributes to better ride quality across uneven surfaces. The included Cognito 2.0 Remote Reservoir Aluminum Shocks use external reservoirs for increased oil capacity and improved heat dissipation, helping reduce oil aeration and maintain consistent damping under demanding conditions. Factory tuned precision valving is engineered specifically around GM HD trucks, providing controlled road manners while keeping suspension response predictable during off road driving. Installation is rated at approximately 13 hours for a DIY project, and Cognito specifies that an impact tool must not be used when securing the ball joint stud to the spindle, with torque not to exceed 50 ft lbs. Cognito engineers, manufactures, and assembles its components in the USA, bringing the complete package together with an application specific approach to lifting the Silverado and Sierra HD.

Fitment: 2020-2026 GM Silverado/Sierra 2500HD/3500HD 2WD/4WD w/ 4" Front Lift & 2" Rear Lift

Notes:

  • Fits 2020-2026 Silverado/Sierra 2500HD/3500HD models
  • Compatible with both 2WD and 4WD trucks
  • Provides 4 inches of front lift
  • Rear block kit provides 2 inches lift
  • Estimated DIY installation time is 13 hours
  • Do not use impact tool on ball joint
  • Ball joint stud torque must not exceed 50 ft lbs
  • Includes maintenance free preinstalled ball joints
  • Non torsion bar drop front lift design
  • Designed to correct lifted CV joint angles
  • Product images may be representative

Install Instructions: SKU 110-91373 

Install Instructions: SKU 110-91374

Install Instructions: SKU 110-91375 

Install Instructions: SKU 110-91376 

FITMENT GUIDE

Exact Fitment — Verify Your Year

Year RangesYears
Make
Model
Series
Engine
2020-2026
GM/GMC/Chevrolet
Silverado/Sierra
2500HD/3500HD
6.6L Duramax L5P

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