I need sugestions about installing a lift kit for my 2002 tj sahara, almost got a 4" lift someone toll me that if I don't do much off road I should not, I'm not looking into going rock climing on it, just got little bigger wheels and tire from a 2009 unlimited, and will like to give a better look, was looking into getting a lift kit from rough country they have a 2.5" and a 3" for good deal, my friend toll me that rough country usually ride a little hard, any sugestions? please thnxs, what I'm thinking about getting is the progressive spring kit