Ok, the onlyinfo i could really findis on race Runners web site, but i can't make anything out of it.
SWAY-A-WAY - axles, torsion bars, and shocks for trucks, cars, and off-road vehicles - Suspension Kits
With the 2.5 have a 700 spring rate, i'm sure the ride will be a bite harder over the bumps, but i don't mind a bite of a stiffer ride since the truck is lifted. I have a revteck spacer lift right now, and the one thing i would like to avoid is that "kick back" that a really stiff suspention gives you when you go over speed bumps, or more importantly, rocky trails. To be honest, my rig sees alot more pavment than trails, but i just want to do this right this time around. I really hope somone can shed some light on this.