2009-2018 DODGE RAM 1500 2WD *DOES NOT FIT MEGA CAB MODELS / DOES NOT FIT EXTENDED CAB MODELS *NOT COMPATIBLE WITH 2013+ RAM TRUCKS EQUIPPED WITH THE ACTIVE-LEVEL FOUR-CORNER AIR SUSPENSION The suspension on the advertised compatible vehicles requires a spacer that is not a 1:1 ratio; therefore the stated (lift) height is achieved after install, not the height of the spacer itself. For Example, a 1" to 1.4" thick spacer (depending on the application) will provide 2" of lift. What is a leveling kit? .