I have a feeling it will be more than A dinner!
We usually stop each 150 miles or so for a break. Sometimes when it's really hot out I use an inferred gun and shoot all the wheels but didn't this day. We stopped about 130 miles prior to this stop and I always do a walk-around and at least look everything over on both vehicles. This is an 8,000# axle with Never-lub hubs and bearings. Brakes are hydraulic disc. This is the fourth trip across the country. My best guess on mileage is ~25,000 miles and is not yet 3 years old (Jan 07). I have weight slips and we are running well under the rated axle weight. Dexter's web site says they have a 100,000 mile or 5 year warranty. I'll find out Monday how well they respond. From what I understand they are really good about standing behind their products.
BTW, I thought I was prepared but found out I didn't have a socket for the lug nuts with me. They are 1 1/16". Fortunately there was a hardware store open that had individual sockets and they had the size.