Yup, the back end of the pickup must have been squatting to low. I'm balanced purdy well except for the extra 7 gallons of water. The pickup I have is the lightest duty 1/2 ton pickup they make. And, quite frankly, Chevy pickups are not known as work vehicles but, they ride like a car. If I ever go this far again, especially after dark, the problem would have to be attended too. A weight distribution hitch may, be the solution. A decent set of springs on the back of the pickup would be good start though. I have no idea what this pickup is even rated for carrying for load. I bet it ain't much.