Depending on your engine, with or without AC, and single or dual front shock configuration, your truck came with the equivalent to either the Moog 820 or 822. That being said, the 820 is a shorter (installed) spring than the 822.
I recently used the 824's that were quoted as the heavy duty replacement for my truck (Supercab, shortbox, 4x4 5.8L w/ AC). It originally came with the equivalent to the 822's. After 24 years I imagine they had sagged a bit as well.
My results were exactly what I wanted: a level truck with a similar ride to stock. I did notice it was slightly firmer but not by much at all. Overall, the truck rides great but now sits completely level. It will soon get 31x10.5r15 tires to raise it about another inch total. Pics below:
Comparison of stock and Moog CC824 springs.
Truck now sits completely level.