Anyone know the spring rate difference?

I bought some complete used 2008 KK struts a couple years ago, because that's the only way the wrecker would sell the clevis forks. What I didn't realize until now is the KK springs have less coils, and they're thicker by about 0.100". KK on the left, KJ on the right. The struts list as the same; insulator lists as the same; the top plates have a different angle & height; I can't find a listing for the springs.

I wonder what they would yield for ride height in a KJ. Anyone have details?

_________________
Hers: 2005 KJ, V6/6spd/NV242J/3.73/posi, 2" Teraflex, ¾" cradle drop, KK forks, 22½" hub-to-flare, RRO arms, 245/75R16s, 260,000km
Mine: 1993 W250, Cummins/5spd/NP205/3.54, Lockright, ~3" lift, 315/75R16 Duratracs, extra smoke, more noise, 374,000km