I got mine last summer, I think for under 400. I can't remember exactly. I think they do ride better, but more than that they brought up the front end and it sits just a little higher than the rear. I was having a front end shimmy, hitting a pot hole, or across railroad tracks, that felt like the front axle was trying to disassociate itself from the truck. The problem is gone for now. Not sure if the two were related, but my guess is that it was.
Dave