Dollars to donuts they were loose since you broke 4
![Wink ;)](https://board.marlincrawler.com/Smileys/marlin/wink.gif)
It pays to be anal about vehicle maintenance, especially when a vehicle sees heavy or extreme use. I work at a busy tire shop and even if we just change 1 tire on a rig we check torque on all 4, and it's not at all uncommon to come across a few loose lugs.