Leaf Spring Movement?

[Ryanz]

Has anyone else noticed the driver’s side leaf spring movement (about 1/4 -1/2 inch) on driver’s side toward front and back when turning wheel with tires on ground?

We noticed this today and took it back to place that replaced my springs and bushings. They said they will replace but feel that is normal on drivers side with steering box. Claim it’s just the rubber, and it’s all doing what it is supposed to do, have flex. The passenger side doesn’t move.

Was curious if anyone else has noticed this.