Did your truck have the hub nut lock washer described above on it? If not, that is likely what led to the failure as it would allow the hub nut to back out and take all of the preload off of the bearings. Not much time after that happens that things go seriously wrong. Take a good look at the bearing surfaces on the inside of the hub as well. If you just put new bearings in a hub that is all marred up, they aren't going to last very long.

Sean Strawmyer
Back and ready to rock...... crawl.

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