Cognito 110-P0778 4” Standard Lift Package With Fox Shocks

The Cognito 110-P0778 4” Standard Lift Package With Fox Shocks will help your 2011-2019 GM 2500HD/3500HD 2WD/4WD stand out from the crowd. This 4” lift kit features a non-torsion bar drop front suspension that drops the front differential a full 4" so your truck will retain the factory tie rod and CV axle angles. This design keeps the torsion bars in their stock location rather than hanging lower under the chassis. 

The Cognito 110-P0778 4” Standard Lift Package With Fox Shocks increases the front track width by 5/8" per side to maintain proper caster settings and the incorporated a front skid plate protects the front differential that ties the included front & rear cross members together for added strength. This lift kit comes with the Cognito Pitman and Idler Arm Support Kit that corrects a design defect in GM truck steering systems and add rigidity to the steering components. With Fox shocks to give you smooth ride on the street and responsive handling off-road and a complete hardware kit, this American made lift kit includes everything you need for installation.  

Maximum wheel backspacing is 5”.

Follow alignment specs at the end of this instruction set.

Trimming of inner fender well and bottom rear of steel fender may be required.

Factory 20” wheels will fit with this lift kit, factory 17” and 18” wheels will NOT fit.

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.

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.