It is important for you to put the right pressure in your light truck tires to ensure that they drive smoothly on the road and will keep you safe. The right pressure is going to depend on the vehicle as well as the amount of weight that you would like to place on the tires.
For most tires, you will need to keep the pressure between 30 to 35 psi. You should check the recommendations from the manufacturer to ensure that you keep the tires at the right pressure.