Old thread but this helped with my 16 explorer with the same issue. It would clunk when turning to the right. I initial brought it in when I first noticed the noise but the dealer couldn't duplicate. The problem then got worse and started to happen more often. Thank god I found this thread with the TSB info! I brought it back to the dealer with a video and the TSB info. The service manager also was wanting to take a test drive with me and luckily the noise was there when I showed him. Even with all that, they couldn't identify the problem. They said they needed to check with Ford engineer. The next day, they confirmed they are going to perform this TSB. Because the fix involves welding as mentioned above, they need to schedule me with the body shop. I'm sure this will take care of the annoying problem that should have never happened. Thanks a bunch to jmr061 for the TSB information!