wtilley51 wrote:
philh wrote:
wtilley51 wrote:
Thanks for your reply. The TV specs state 17,200 as max FW trailer weight and 3927 cargo weight. FW is close but I believe TV manufacturer uses the 80% rule when publishing specs.
80% rule???
OEM's test their vehicles to the rated capacity.
It is probably not a "rule" rather a practice. If I were building truck, I would test it to 100% of capacity but for safety reasons would publish a capacity somewhat less the 100%, say 80% to 90%. That leaves a built-in margin of safety.
What is 100% capacity? In the 70's farmers loaded 18000 lbs of wheat in the box of their 3 ton Chevy with a 6 cylinder gasoline engine and 4 speed transmision. You'd be down to 15 mph on the uphill and stopping in any kind of hurry on a downhill was not much of an option.