Demon rear spring height

Just measured my 71 340 duster front and rear wheel lips at the center of the hub. Original 80,000 mike car. Original springs.
26” in the front.
25 3/8” in the rear!

Sounds pretty close to me, maybe a little high in the front. If you look at the promotional pictures and stuff from when these cars were new a lot of them looked higher in the front than the back.