Terry and jo, i would guess some are not purchasing replacement tires or checking tires on trailer when purchased.
Tires on tow vehicle as well but not sure how they are sooo overloaded.
My dually and DRV trailer, tires and axles are all a good safety factor under load spec.
What i have Issue with is how manufacturers change the standards used to set vehicle weight rating.
A 2002 350 dually is rated 20,000 but a 2020 is rating 35,000, i call BS for Bending Specs due to market demand.
After 16 years with GM truck Engr and Prototype development design spec was 1-1/2 times build rating. Build a 20,000 rated truck you use materials rated at 30,000. If you saw the stress testing procedures to destruction you can trust the design load spec rating.
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