Hi all.
I have a 2004 Legacy with a known-cheap-offbrand bearing in the front passenger wheel. I recently had to change a failed CV joint, and torqued the nut to spec. About a week later, I was feeling some wobble from the wheel at freeway speeds. While checking other things, I checked the torque on that nut and it took another 1/8 to 1/4 of a turn before returning to torque spec. The nut was, before turning it again, still "pinned" to the axle cut-out. Later that night on a short trip, the wheel started popping/grinding when almost home, so I parked it.
Today I was messing with it and put the wrench on it again to see if anything had changed with no intention of driving it further even if it did before I figured it out; it took about another 3/4s of a turn. At this point, the wheel was completely locked and will not roll with the vehicle in neutral or gear.
The "wheel locked and won't turn after grinding" bit sounds a lot like a fully failed bearing to me, but the "nut keeps having more room to tighten down" bit is new. Does this sound like something that can happen with a failed bearing, or is there something else I should be looking for?