Rear suspension travel

MD68 said
The kit I have in mind is an anti-roll bar, like you would see on a 4 link. I’m not convinced the issue is side to side movement but more of a body roll. How much can our leaf spring suspensions move side to side?

1/2- 3/4 in is about normal.

Got a link to this kit? There’s a difference between what a panhard does and a sway bar does.

LateralG forum has a real good animation to show what’s going on with the rear during cornering.