Before leaving Yuma this morning we stopped by a local tire shop and had them rotate the tires/wheels on the truck. I had also wanted them to reverse the tires on the two front wheels (that is take the tire off the rim turn it over and remount it) but the manager was not prepared to do that. He pointed out that to do as I asked he would have to disassemble the wheels (the truck has two-piece wheels and the two halves are sealed together with rubber O-rings) and without new O-rings (which he did not have) the reassembled wheel might leak. So we settled for a simply rotation. I stood in the workshop area for about an hour and a half rugged up like the workers while a freezing wind whistled past.
Back on the road with our newly positioned wheels there seemed to be a noticeable bounce from the front axle. I will have to investigate putting more balance beads in the front wheels.