I have seen bike racks rated at 400 lb. and some at 600 lbs. mine is a 400 lb. one and I did a 10,000 km. trip to the west coast and back, with a 300i downtown on the back of a toyota sienna van , with air bags on the rear springs to keep it level,. I hardly noticed it was there,. except when I parked the van, I back in , got to watch the curbs if they are high, you would have no problems with a truck you are much higher,.