I thought I would post this up since i haven't seen anything about this in the forums. Last trip to Mammoth a few weeks ago, after popping the top I was shocked to see the threaded bolt backed out of the support brace on my rear drivers side corner. A few more pop ups and it would have come out! With a a few tools I was able to get the bolt back in and tighten the nut down. At that time I realized that every time I am popping the top the nut was slowly being loosened off the bolt. These are the bolts installed by CCV which are threaded from end to end. At the last van meetup someone had mentioned to me that these threaded bolts over time can disfigure the hole in the steel brace and cause failure of the supporting arms. Or in my case catch on the steel hole and back the nut off and slowly back out of the brace. So I took the initiative to change them all out to a stronger sleeved barrel bolt with a threaded end for a lock nut and washer. All my bolts are now changed out and i have piece of mind. Anyone care to share what CCV are using now for the support bolts, they should change them to what i used as it is clearly stronger with no chance of backing out. Maybe they have already?