They are the bump stops on the spring pack. They are for the factory jounce bumpers to make contact with. I work for Ford and can't understand for the life of me why they made them rounded off. Just doesn't make sense. Why not flat???
But anyhoo, not sure if that's what's causing they sway, but it may be.
2013 Jayco Eagle 328 RLTS
2012 Ford F250 6.2L 4x4 CCSB W/Air Lift air bags
2002 Coleman Bayside Elite (traded)
Me, Momma and Charles (RIP buddy)
And introducing Sofie!! ;)