Our right side arm rests disengaged from the seat frame at about the 10 O'clock position, left arm rest at 2 O'clock position.
Mine were a 3/4 rod" with a pin welded at 90 degrees.
As I rotated the arm rest pushing in slightly you could feel the pin release from the frame then pull out.
2009 Monaco Monarch 33SFS...Jeep TJ
Wintering in Apache Junction. Summer in Ontario.