Roadmaster or Hellwig Rear Swaybar

While it may or may not be germane to your situation, I've broken a number of sway bar links driving off road with my camper on. I carry a spare with me now. When you articulate the rear end or front end (mine is solid axle front and rear), the stress on the opposite side of the sway bar (remember a sway bar is actually a torsion bar) can break the link (which is the connection to the frame rail).

Why off roaders routinely disconnect a sway bar when 4 wheeling.

If you drive on pavement or smooth surfaces all the time, no issue. I don't.