Just returned from a 3000 mile trip (02 , 3500 + Lance 1030). The only problem seemed to be a vibration at around 65 mi/hr. But not always ,just most of the time on the interstates. Is it possible that there could be a synchronistic vibration caused by the road surface that would feel like an unbalanced tire? Never seemed to happen on concrete surfaces but almost always on blacktop. Vibration would die away if I dropped below 55, hardly ever push 70 so don't really know about that speed. Tires are new Bridgestone 235/16 Revos: 65/lbs front and 60/lbs rear.