This Tuff Country 2 Lift Kit for the GMC/Chevy truck uses front replacement torsion bar keys and rear add-a-leafs to lift. The included torsion bar keys reindex the factory 2500HD torsion bars which lifts the truck without cranking up the factory torsion bars. Once installed this lift kit will keep the Factory Rake, with the front end being slightly lower than the rear.. This Tuff Country 2 Lift Kit for the GMC/Chevy truck uses front replacement torsion bar keys and rear add-a-leafs to lift. The included torsion bar keys reindex the factory 2500HD torsion bars which lifts the truck without crankin. Tuff Country 01-10 Silverado 2500HD (Non-Pur TB) 4x4 & 2wd 2in Lft Kt (w/Rr Add-a-Leaf No Shocks). 2001-2010 Chevy Silverado 2500HD (vehicle has non-purple marked factory torsion. No Sacrificing Off Road Durability And Performance. Will Not Shortchange You On Critical Components. Designed To Replicate Your Factory Ride. Making The Install Safe And Effective. Gives You The Best Of Both Worlds. Limited Lifetime Warranty. Fantastic Ride Quality. Box kit-2in.

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