Anti Sway Bars 101 (LXi and LX)

[davidbrady]

Even without Hadley, you still get roll resistance thru the front air springs. I didn't mean to down play this effect. It takes time for the air pressure in the outside spring to bleed into the inside spring during a turn. In a steady state circular path at some point all the air bleeds and pressure is equalized, but for most every day driving conditions, moose maneuvers, clover leaves, the out side air spring is providing instantaneous roll resistance. But, unlike Hadley, roll deflection is required before resistance is generated; i.e., springs need to deflect before they can resist the roll of the bus. With an anti-sway bar you can generate more resistance with less lean. Unfortunately the inside air spring offers no resistance to roll. With leaf spring suspension, both springs offer roll resistance, both the outside spring as well as the inside in a turn. Some truck suspension manufacturers use a semi-elliptical leaf spring in conjunction with their air springs to generate spring force on rebound and to improve roll stability.