Google "2009 dodge ram wheel bearing replacement" and you'll find quite a few other Dodge owners who haven't had your luck.
I've never seen the innards on one but from what I've gathered, the inner and outer bearings have very little space between them so any leverage on the spindle can easily twist it. These lockout kits move the bearings farther apart which greatly increases the force needed to twist the spindle.
A friend of mine put a kit in his '04 2500. He said he gained 2 mpg and vastly improved the steering when the hubs aren't locked. It greatly reduces the wear on the front driveline because they aren't turning all the time.
