The factory rails are uniform from back too front. Would be nice if there was a bend of some sort that could be used. Chocking the wheels I imagine would also help to prevent this somewhat. But for the money, I would rather be safe than sorry. I guess it looks like I will be ordering soon. If I had the skills I would make one myself also and save some cash for other mods.That's interesting. I've not had that happen, but I can see how it might. You may be right on target that a bigger surface contact point would help. Another option would be to pick a jack point that has a natural limitation against side to side motion. I know that the front end of my rock rails will do this because there's a tube bend on one side and a stringer on the other, but I'm not sure about the rear end! My ARB bumper has jack points by design, and my rear bumper has a couple of sweet spots that I've used repeatedly, but I've certainly seen ground where the options for placing the foot of the jack were very limited. Based on your comment, I may have to doc-fab a rock rail grabber... just in case.