The truck and trailer and the load on the truck could only legally gross 80,000 lbs. If 75,000 lbs. of squash was spilled out onto the road why wasen't the driver also charged with an over gross violation? An empty tractor trailer usually weighs around 32,000 lbs. Do the math. If he was hauling 75,000 lbs. of squash his tractor and trailer could only weigh 5000 lbs. My pickup truck weighs 5400 lbs.