[Potomac-Greg]

I was checking and un-winding some rear sway bar pre-load (i.e. the stress on the bar while the car is sitting flat/even on the ground) and I tied myself in mental knots trying to noodle out what sway bar pre-load does. My best guess is that it effectively increases spring rate in one corner, and reduces it in another, right?

And is that what the NASCAR teams adjust with a crank near the back window?