2 Inch Lift Kit 01-10 Silverado/Sierra 2500HD 4x4 w/Rear Add A Leafs For Purple Keys Tuff CountryThis Tuff Country 12934 2 Inch Lift Kit for the 2500HD truck uses front replacement torsion bar keys and rear lift blocks to lift your Silverado Sierra 2 inches. The included torsion bar keys reindex the factory 2500HD torsion bars which lifts the truck without cranking up the factory torsion bars. Made in the USA for a Reason Since 1988 Tuff Country EZ Ride Suspension has been and still remains one of the very few suspension lift kit brands that