1988-1999 Chevrolet K1500 1992-1999 Chevrolet Suburban 1500 1995-1999 Chevrolet Tahoe 1988-1999 GMC K1500 1992-1999 GMC K1500 Suburban 1992-1999 GMC Yukon 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? .