........what if the skirts on the truck were just real tough rubber?
You raise a hell of a good point?
I like another poster’s comment on how 65,000 lbs ain’t blank. Plus, I35 in Austin is a parking lot all day long. Maybe between 2am and 5am you could get through at 65mph.
65,000 is the “typical” load for an 80,000 pound truck.
I can’t find the reference but that number is used for a lot of testing. It represents a real world not a max number based on average loads measured.