When we arrived in Provo, a large bump was evident on the left front tire sidewall.  No doubt about it this baby is gonna fail, it is just a matter of time.  After some calls I found a truck tire service facility and took it in for some new shoes.  Turns out there was a larger bump on the inside of the tire.  Not that a tire failure is a good thing, but we just came through a mountains on 2 lane roads and are headed where services are harder to obtain.  The shop was 3 miles from camp and had no queue this morning.