I was thinking about this too. I figured that in quick jolts the tires would flex and if moving at any speed, the tread would flex enough to let it walk in and out. But.... still something is there that wasn't before... It could very well be this combined with leverage differences make up a noticeable difference?

Frank.

1994 4runner, 3.0, auto, 4.88's, 31's, BJ spacers, Coil spacers, air shocks, D-ring anchors, 4Crawler F/R swaybar discos.
www.sdori.com