wilber1 wrote:
So, if a manufacture put a 6K front axle and a 7K drive axle on a half ton, it would be good for 13k regardless of the rest of the truck's structure. That makes no sense. The reason manufacturers placard a GVWR for the whole truck is because it is not based solely on axle capacity.
Actually it makes perfect sense.
A truck mfg isn't about to use a lightweight 1/2 ton frame and then give the truck a 6k fawr and a 7000 RAWR.
The truck maker may choose any GVWR he wants up to and including the sum of the vehicles GAWRs.
Looking at Fords fleet weight specs under all the year models varifies this and says; Quote;
ford weight specs Pages #71-74
4) Gross Axle Weight Rating is determined by the rated capacity of the minimum component of the axle system (axle, computer-selected springs, wheels, tires) of a specific vehicle. Front and rear GAWRs will, in all cases, sum to a number equal to or greater than the GVWR for the particular vehicle. (snip)
On Edit
Which begs the question, why would people think one placarded weight is enforceable and others on the same placard not be enforceable? Wishful thinking?.
Its not wishful thinking. Its what dot enforces. I've gone trough scale house in a eight state area around my state and this is how the system works.
GVWR simply isn't used for how much load a truck may legally/safely carry.