I just noticed when I was installing my new centramatics and spinning my wheels/tires just to see if they were still mostly round that both my hubs appear to be permanently engaged. (Guess that explains the slight fuel mileage drop I have been noticing/wondering about.) While this may be the case, I suspect that maybe the bearings that support the axle shaft when the hubs are unlocked may be the culprit. I haven't torn into it yet, because my wife is deployed and my son isn't quite 2 yet, so he takes almost constant supervision, but can someone refresh my memory how these axles/hubs are put together? I had them off once to do ball joints and can't remember EXACTLY how these are set up. Is that bearing that supports the axle shaft in the knuckle/hub assembly part of the locking hub, part of the unit bearing, or different all together. I am trying to figure out what route I am going to go...Dynatrac free spin kit, Warn Premium hubs, or just replace some faulty parts. I will have it all apart to do the inner axle seals as soon as the wife gets home and I figure that I will just do it all at the same time, but I need to budget some money and acquire parts first. Thanks.