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Old 11-01-2015, 08:23 PM   #7
leftybass209
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Join Date: Feb 2011
Location: Modesto, CA
Posts: 2,189
Re: Carrier bearing trouble???

Many things could likely have been faulty, but a couple of things sound like a likely issue that helped contribute. First, do you know if the driveshaft balanced as a unit before it was installed? That can cause vibration and certain speeds, which is transferred to the carrier bearing, deteriorating it much faster!

Also, it could be cause by a driveshaft that isn't in proper alignment between the transmission and the differential. I don't remember the angles, but if they are not aligned correctly, when you accelerate the driveshaft won't be aligned with the differential pinion, causing undo stress on the carrier bearing and/or the pinion.
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