These tires were installed new when I first bought my explorer in February of 2011. The first winter driving with them was ok, we didn't have a ton of snow but did slide a few times when ice was present. During the spring and summer I had no problems with the tires and driving was smooth. After putting about 15,000 miles on these tires (having them rotated every 5k). I started to get some vibrating/bouncing while driving but no noise. Had my vehicle checked and no mechanical problems were found. This past winter I had no traction in ice or snow, and easily slides in the rain. The vibrating and bouncing has gotten to the point that my whole vehicle shakes when driving on the highway, as if I am going over many shallow potholes. I have had my vehicle checked several times and it is def. the tires. I now have 24,000 miles on the tires and have to put air in them every week or two, tread life is bad, will be replacing soon and not buying Eagles. I love goodyear tires and will probably go with something better recommended for an SUV.