Who makes an adjustable leveling kit for the 2007-2015 Silverado, Sierra, Tahoe, Yukon and Suburban? SuspensionMAXX does! MAXXStak increases front ride height 1.5″ by inserting solid steel spacers between the struts and lower control arms. Additional lift heights of 1.75, 2, 2.25 and 2.5 can be obtained by inserting assorted shims that are specifically manufactured to combine with the strut mount. This adjustability allows you to obtain just the right amount of front lift for your needs – to match or exceed the height of the rear of the truck, as well as compensate for variables such as cab length, front end weight, desired snow plow height, etc. It’s like getting 5 kits in one. Proudly made in the USA! See product details.