2013 leveling kit

[13blackhoe]

I have a 2013 2wd z71 tahoe and need to biy tires i wannad go up in size and ill be going with Bfg all terrain. What size tires can i clear without scrubbing on factory 18 inch wheels? With a 2.5 or 3.5 leveling kit. Think im gonna go with the Ccm leveling kit.