First series 6409 stake racks with dump bed, 2 speed rear axle, tires are 8.25x20 all new 14 ply, curb weight is 5855 lb without dump bed mechanism, rated load is 10100 lb. I'm hauling firewood with the truck. 78 miles round trip, 24 miles of that is on a narrow dirt road with a 7 mile climb up a fairly steep grade. Other than the hydrovac which I had Cordoned industry rebuild I replaced all the brake components with new including relined shoes. I'm guessing the dump bed adds around 1000 lb so I should be good at 9000 lb payload if the springs are in good shape. I don't want to stack the wood in the bed neatly and measure it so I'd like to be able to judge the weight by how much the bed squats.
