Ranger wrote:
[quote]It’s confusing to think of the sway bar as a spring.
[/quote]
Don’t take it from me, take it from Wikipedia.
A sway bar (also stabilizer bar, anti-sway bar, roll bar, or anti-roll bar, ARB ) is an automobile suspension device. It connects opposite (left/right) wheels together through short lever arms linked by a torsion spring. A sway bar increases the suspension’s roll stiffness - its resistance to roll in turns, independent of its spring rate in the vertical direction.