Cool Vids. I see where there is less movement of the axle, but that is not what i call axle wrap. My take on axle wrap, also called tire shake, is when the rear tires try to leave the ground bacause the leaf springs are trying to coil themselves up. When axle wrap happens you will know it, everything not tied down in the cab will bounce around like you are running over 50 speed bumps 6" apart at 50mph.