[Dan Richardson]

Yes but what they are talking about is not vertically, its horizontally, when that arm rotates outward at any point does it break 80" in its maximum horizontal dimmension. in your case this would probably mean back corner of say left bumper to right front of gripper.

They are just trying to help, this is actually a really easy rule to break. We can break it we just will have to impliment software to stop it.