I am looking for the same thing.
I have a 1998 GMC C1500 Suburban 2WD with half a broken leaf on my drivers side.
Found this from General Spring:
https://www.generalspringkc.com/Leaf_Springs_Chevrolet_Suburban_1992_1999_s/1847.htm
Looks like I could get 2500 springs for about $400...