It started with a grinding sort of noise from the rear right- unknown area though- couldnt tell but assumed from the wheel area. Then came accros an article from Mustangs plus that got me thinking. They stated that rear wheel bearings go bad, and a symptom is initally a grinding sound, which then can progress to the bearing failure and your tire flying off down the road as your driving(since the bearing is what essentially holds the axle to the car). I knew that i had replaced the third member, but re-used the axels, and didnt know the history of the rearend. I initially did the bearing test before re-installing the axle(the spin the bearing around, if it makes more than a revolution its bad) and it tested ok in this test. Installed the axle, no problems for a few hundered miles. About a few weeks ago I was driving, got this grinding unspecific noise, which increased in pitch as i went faster. Later in the week, i was flagged down by a lady who was driving behind me, who said my passenger rear wheel was doing something "funny". Immidiately i thought of that mustangs plus article, and how they talked about the bearing, and it clicked maybe this was my problem and my wheel was going to fly off at any moment- so i very lightly drove the car home. This weekend i pulled my brakes appart to get to the axle, pulled the axle out, and the bearing "appeared" to be fine. Did the same bearing "test" mustangs plus said to do- spun bearing, and its has a good amount of resistance and didnt spin completely around. Im at a complete loss now- should i take the axle and get the bearing and retainers pressed off and then get a new bearing and press it on. Seems like a shot in the dark since the bearing appears fine- any other suggestions?