Lift amount does NOT equal spacer thickness owing to the suspension geometry. Lift spacer is not equal to the actual spacer thickness. --Rear Block is 2" thickness ---2004-2020 2WD has NO stock block, it will provide additional 2" lift. ---2004-2008 4WD has 2" stock block, it will provide NO additional lift; ---2009-2020 4WD has 1.5" stock block, it will provide additional 0.5" lift; What is a leveling kit? .
