1976 suburban 3/4 ton 4x4 removing an 8" lift to stock height ish

[res0wc18]

so almost done restoring an old burb, previous owner put some huge lift on it. i want it back to stock ish height. Anyone know where i can buy good American made springs etc? I found this place who seems to have all stock replacement stuff...

http://www.generalspringkc.com/Leaf_Springs_Chevrolet_Suburban_1973_1987_s/1845.htm

anyone done this before?