I added the radiator protection right after I bought my 2007 Jeep Wrangler. Radiator has already taken a tall from the rocks. Also, I wanted to prevent radiator clogging by big insects. In addition mesh grille should protect from long branches sticking into radiator cores. Having plans myself for long trips on dirt roads I have decided that it will be my first project.
I used gutter protectors. They need to be cut in to pieces that each fits one of the seven openings in the traditional Jeep grille cover. I painted each piece flat black before mounting. Adhesive squares add mounting points for mesh pieces to be attached. Initially I was thinking about using zip ties, but decided to use paper covered wire twist ties instead.