oh yeah, i over load my 80 chevy luv alot. Its rated to hual 900lbs in the bed, when we had a pellet stove i would load 2,000lbs pallets on it in one go. I have hauled 2yards of gravel in a single axle trailer (total wieght roughly 3500-4000lbs). Over loading is a fact of life, i think truck companies under rate thier trucks if anything know thier costomers will work em like a dog...