Quote: Leaf spring car as the leaf will 'bow' more on the inside as the weight is taken off, same as when you jack up the rear of the car with the floor jack under the center of the pumpkin/differential/ rearend, the leafs will bow and pull the rearend forwards a little, and yes it is a measurable amount. As the front of the springs are bolted to a non-moving anchor.
That will still occur with an anti-sway bar as the links will still allow that shift as the link bushings will 'pivot' in their holes and the link will move forwards and rearwards somewhat.
But the rear swaybar should reduce lean on the rear of the car and reduce that phenomenon, no?
