I have a RK 2.5 flex which is 2.5" springs, lower adjustable arms, adj track bar, and rear track bar bracket. I'm running FOX IPF 2.0 shocks. I'm not happy with the ride. It's better than stock, but nowhere near as good as my 2008 4runner was with ICON coilovers up front and bilstein rear 5100's. The 4runner could launch over speed bumps in the neighborhood and soak them up. My Jeep crashes over speed bumps. Also when coming to a complete stop, the jeep does 3 little fore and aft rocking motions. It's like there's no dampening for small movement, but if you take a big hit, it's gets real stiff. The progressive springs, while they sound like a good idea, I don't think they are working. With the jeep at rest, the first 3 coils are basically touching!
I'm not sure what to do to get the performance I want. I want to not have to slow down for speed bumps and just soak them up. I don't know if it's the shocks or springs or both to blame. I'm tempted to try the EVO plush rides and swap shocks- either Rancho 9000's (ran then on my old CJ) or go with something exotic like King.
Then part of me wants to just scrap it and go with coilers.
Since I already have the front lowers, track bars, extended brake lines, it's not too much cash outlay to swap springs and shocks- especially if I can sell my stuff locally.
