'65, last time I weighed my truck at the concrete plant, my '66 C-10 SWB stepside came in right at 3600 lbs, and that was with a full tank of gas and no one in it.
When I came back through to see how much I had loaded, well, I was a little over the GVWR at 5200 lbs. I drove reeeeal slow back home (40 in a 55 mph).
