Uh, they are talking about a dual front coilover system for SA rigsLive4yotas said:I wish I knew what my rear spring rate was. I have 8" lifted springs by alcan made so that they wont axle wrap with 38's. They also weren't supposed to lift but 8"s but ended up lifting around 10"s and ride like the damn axles welded to the frame. But they dont axle wrap a bit with 5.29's and 36's. Will see what happens when I put on my 39.5" Iroks soon. But endless to say I wont be buying another set of springs from alcan. I guess I forgot to tell them that I actually plan to stay planted to the sit over bumps.