I installed them on a 2000 Jeep Cherokee XJ about 3 weeks ago and then immediately drove about 160 miles. So far, so good. Some reviews indicate a quality control issue, but both sockets I received were brand new and well packaged. I've done a lot of research on which option is the best and Timken seems to be well tried and tested. I'll update if anything changes, but that's not a problem for now.