Old post but I thought I'd follow up. I've got a 1999 that I put 3" JKS springs on to replace 2.5" Rough Country springs. I've currently got Rancho RS55239 and RS55241s that I used with the 2.5 springs.
When I hit bumps it seems like the shocks aren't cushioning the blow as well as they should, kind of sharp kits. Does that extra .5" make those shocks the wrong choice for the springs?
The other side of the coin is I've got about 28k miles on them and they are four years old. I doubt that age matters but I share it because who knows...
Anyway since you put on the same springs with new shocks what was your experience with the combo?