Originally Posted by heretic

Maybe I'm a little bit late on this, but I've never understood that line of reasoning, though I've seen some guys infer from that, that sway bars made no difference, and they just got rid of them. I find this absurd. Why should the sway bar lift the other side ? It merely has to make the other side "lighter", to have any effect. There's no need to witness an actual movement. Especially if you leave the wheels on, you're going to have to go to a pretty thick bar before you notice any upwards movement of one wheel if you lift the other. Not saying there's nothing wrong with yours, so many things can go wrong when installing a bar. I'm just saying one of the premises of your argument is wrong.

Arguably noticing some degree of movement makes it much easier to adjust the symmetry of the bar, of course.