Heathcock v. State, 415 So. 2d 1198(Ala. 1982). Defendant was driving a coal truck that was driving too fast on a downgrade. The legal weight limit for the vehicle was 80000 +/- 10% or 88000. The vehicle weighed 96,400. Despite a complete lack of testimony that this amount overweight contributed to the accident the Cory upheld the use of that evidence as proof that the driver committed manslaughter.
The operator was speeding.....and his truck was carrying weight above the max weight allowed on a road surface (80000 lbs by fed regs) which has nothing to do with being over a the trucks GVWR number or a payload number.
Your case is a poor example of what were talking about here.
People v. Phippen, 232 A.D.2d 790 (NY Sup. Cr. 1996) (truck driver had blowout that resulted in three deaths. One of state's theories was that the vehicle being overloaded caused the blowout. The defendant was eventually acquitted but went through stress and expense of criminal trial and appeal. If the state offered evidence linking overload to the blowout he would have been convicted .)
Again nothing there but theories and doesn't prove your opinion that the truck was carrying weight above a mfg gvwr or a payload number.
Show us a case where a truck was carrying weight above the mfg GVWR or a payload number or pulling weight in excess of the vehicle mfg GCWR and the driver was sued or faced criminal charges/etc.
Its simply not there.
What your finding is typical of a illegally loaded OTR truck which is mostly 80000 lbs gross/20000 single axle/34000 lb tandems and in some cases a bridge formula violation.
The class truck in discussion doesn't fit those numbers.