They haven't made true work trucks in decades, the old Internationals being top of the heap in durability and power but drivng them on the highway was brutal. They would be screaming at 60 mph. I too had a few 1/2 ton Chevy trucks from the late 60s and early 70s and I loaded them with loads that would squish a modern 1/2 ton. I remember having shingles piled higher than the roof in one of my Chevy 1/2 ton trucks 8' bed and hauled them away no problem.

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!