Demon rear spring height

Using the Duster 340 measurements, this shows my car as being lowered 1.75" (11.2.5") in the front, and the rear being almost 3" (14") higher than stock. I measured at the center of the bumper, which is the bottom of the license plate opening, if I went to the actual bumper, I would show an even higher ride height. I think something is off there. This pic is with a 315/35R17 out back (~26") and a 215/45R17 up front (~25")

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Thx for the info. And wow, what a beauty of a car!!

Interesting that the info 72bluNblu provided shows the 340 Demon rear bumper height (15.2"l much taller than the 340 Duster (11.7"). Must be differences in rear bumper design. Any idea what it measures at the quarter panel in line with the center of the axle? Or are Demon and Duster quarters maybe that different...I dunno.