I will say these things hold up well to deer. Back in October, I was driving down a dark, 2 lane, country road. The same one I take every day atleast 4 times to get back and forth to my house. Anyways, I came over a hill and saw a deer (a very, very big deer) in the process of running across the road (hadn't made it to the actual pavement yet). There was an oncoming vehicle, so my only option was to slam on the brakes, lay on the horn, and hope for the best. Keep in mind i'm running about 50 mph, and now going down a steep hill. I hit the brakes so hard, all for tires locked up and started making that horrible screeching noise. Right as I came to a stop (now at the bottom blind spot of the hill), I heard a horrible BAM!!!! and the entire Jeep shook. All I could think about was the big ass dent I probably have in the side of my jeep. I then remembered I had glanced into the rear view mirror before going over that hill and there was a car behind me. (i'm maybe a mile from my house at the time). So I just nailed it to get up that hill before I was rear ended by the car. I got home, pulled in the garage, and got my flash light out, thankfully to find no major damage to my Jeep. I got lucky that he only hit the plastic part above my right rear tire, and left a minor scratch on the plastic. But the sound he made, you'd think a bomb went off under my tire.
Now, this was not a front end run in, like you're afraid of, but none the less, these things are pretty damn tough. It didn't hurt my alignment one bit, and he missed my tire, which meant no flat tire in the morning.
I then invested in "Deer Warners" from K-mart. The best $6 i've ever spent. It's like dog whistles for Deer. They can hear it, and you can't. They give you some 3M tape to stick it to the front of your car, but the tape is crap. I bought some Locktite Silicone and made those bad boys permanent. And the best part is they are removeable from their base, for when it comes time to wash the Jeep. You can see them in the picture below on my front bumper. I highly recommend them as the next night, I spotted 2 more on the same road just standing there, and when i got to where they could hear the whistle noise, they got out of my way, and fast! For $6, ya can't go wrong!
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