Proper inflation is a tires best friend,,Nice truck good luck with Her...
I agree, Inflation, Inflation - critical.
However, now we may be talking about 20+ year old tires. Tires were new for Desert storm, so you saw maintainance issues. Age and especially sitting on one spot causes deterioration.
Tires have a lot of oil in them! It evaporates and settles over time. Running them helps keep the oils distributed. A few years back there was a complex report by Goodyear? - not sure. In short, it explained that when they sit, they deteriorate, but tires run do not usually have issues because heat and movement keeps oils distributed.
Per NHTSA -
When does NHTSA recommend that tires should be replaced?
While tire life will ultimately depend on the tires’ service conditions and the environment in which they operate, there are some general guidelines. Some vehicle manufacturers recommend that tires be replaced every six years regardless of use. In addition, a number of tire manufacturers cite
10 years as the maximum service life for tires.
Here is excerpt from SAFER.GOV.
What is meant by “tire aging”?
The structural integrity of a tire can degrade over an extended period of time. When that occurs, tires are more prone to
catastrophic failure, which could, at best, cause an inconvenience, or, at worst, lead to a crash. The degradation of a tire occurs over time, mostly the result of
a chemical reaction within the rubber components. That aging process can be accelerated by heat and sunlight.
Does climate have an effect on the aging of tires?
NHTSA research suggests that tires age faster in warmer climates. Exposure to high ambient temperatures can accelerate the tire aging process, which could contribute to tire failures, including tread separations. Environmental conditions like exposure to sunlight and coastal climates, as well as poor storage and
infrequent use can hasten the aging process.
Are some vehicles more prone to tire aging problems?
Tire aging is generally
not an issue with vehicles that are driven regularly. Tires will wear out and need to be replaced before aging becomes a safety concern. But those with occasional use - like recreational vehicles or collector cars, for example - could be susceptible. The spares on all vehicles also are prone to aging problems because they
seldom get used or replaced. In those instances,
the structural integrity of the tire may be weakened - and potentially hazardous - even though the tire still has a great deal of remaining tread.
Here is an example of what I am talking about with a light truck tire.
"I used to have a '69 Chevy C10 that only got driven a couple of thousand miles a year. The tires on it looked brand new even though they were
almost ten years old. On a trip to bike week a few years ago I almost lost the truck and both Harleys in the back due to tread seperation on one of the tires. I stopped at a local tire place along I95 and replaced the bad tire, before I had gone another hundred miles another tire started coming apart. I had to stop in the nearest town and replace the whole set. It taught me a lesson! Replace those tires!!"