I think is a little too much for that type of truck, I know for a fact is too much for my F250, but I'm not real familiar with chevies, for DOT I'm sure it's too much also
It's funny that you ask this, I just bought a f-350 dually it carries 2 yds of top soil like it has nothing on it, BUT I was pullover by the DOT las friday, he checked the inspections, tires everything, he even made me unplug the trailer and the emergency brake for it, pull the truck to make sure the tires lock, they did, I was pretty confident, then he ask for my cones and fire ex.. didn't have'em I just bought it and forget to take'em out of the old truck, then he weighted the truck, he said have a seat I'll be right back.
I knew he was going to give me ticket, for my surprise he gave me two, one for the fire extinguisher, and one for OVERWEIGHT, I only had two yard of top soil and was 3,000 over the limit, found out the truck weights 9,500 and I can put a max gross weight of 12,500, which I think is only a yard of top soil, I don't now what to do from now on, I usully load my truck with 12 yds. of mulch and never tough about being overweight.