Four to six inches. With four you will have to trim the front finders and I'm not sure about the six. Also remember that lift springs make for a rough ride. Think about doing a 4" shackle flip and add a 2" block for the 6" lift. I think it is in the technical section, There is a page of what to do with what tires. If it's not there, look around. I know it's here.
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