Originally Posted by davido
Your anti sway bar may not be the limiting factor anyway. I doubt the shocks are long enough to allow much suspension drop. Springs are pretty stiff on HD rigs also. But so is the overall weight, so that may cancel.
Releasing the sway bar allows the axle to articulate better on uneven ground. I.e. one wheel up, one down. May only be 6" overall difference, but that's a lot of stress on the bus. With the sway bar attached, the bar must flex/twist when the driving surface is not flat, and some of that stress is on the body, and the body must flex, also, which is why another member here blew out a windshield recently hitting "the mother of all potholes" on the highway driving the same model bus as I do. I see and hear that corner of my bus creak and flex just pulling in and out of driveways, at an angle especially, and a peak underneath tells me it is the swaybar causing that creaking and flexing, based on the geometry of the attachment points. A lot of that stress is also on the brackets, likely why the bolts in mine disappeared.
I'm not talkin' a rock-crawler bus. Just allowing a vehicle engineered for very flat ground to work smoother on mildly rutted out and washboarded roads.
Just make sure you re-attach the anti-sway (stabalizer) bar before getting back on the pavement going over 25-30 mph. A bus on two wheels going around a turn has quite a bit less traction, and on it's side is not so good.