I guess I should be more specific. I'm trying to figure out how much my truck is lowered from stock height. Measuring from the ground to the top of the fender doesn't do much good since there are too many variables involved like wheel size, tire size, air pressure in tires, etc. Measuring from the center of the wheel is the most accurate way to do it since the dimension will be the same regardless of tire size, etc.
Therefore, I would also need the measurement to be from a truck with an empty bed