Quote:
Originally Posted by slow
The timing makes me suspicious of the preload not being set correctly on reassemble after inspection or grease compatibility issues.
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DITTO on this! The thrust/side load on the bearings when turning and backing is much more severe than on older cars and trucks that used tapered roller bearings. You will almost always "scrub" one or more of the trailer tires on the inside of a tight turn. If the proper preload, too loose, is not applied to the bearing that can actually fracture the cage and cause the bearing to fail in very short order. If preload is too tight the bearing will overheat boiling the lubrication away causing the bearing to seize and fail.