Your gonna get a lot of posts saying that it will help or it won't. Just from experience, I had a 94 ford ranger that I had to replace the windshield 3x in one summer because rocks cracking the windshield. I got a bug deflector after that, no issues. I owned a 12 jk sport and 14 Willys, I got a bug deflector right away on both. It might be chance or psychological but no problems so far so good.So while getting my windshield replaced this morning the glass guy recomended that I get a bug shield to help with rocks. I'm no scientist but I do realize there's a large mass difference between a bug and a rock. Any opinions on if he was right or not?