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-   -   Rear differential bearings out...again (

brentwoodkris 05-08-2013 02:23 PM

Rear differential bearings out...again
So here's the short story:

My dad has an '05 WK Limited HEMI just like mine. At about 100k on the clock (11 months ago), he started getting the "whoosh" sound from the rear and the dealer diagnosed the rear diff as having toasted bearings/seals, etc.

He ends up paying a bit over $2g's for the repair (wow dealer labor) and it fixes the problem...for 11 months. So my parents go to Texas and back and the noise is back. They take it to the dealer.

Lo and behold, same diagnosis. The repair came with a 12month/12,000mi warranty and thankfully they literally JUST fall into the warranty. The service advisor was SUPER surprised when my mom had her look up the repair and said she was sure that had been done about a year ago.

So the crux of the question is: what could possibly have caused the bearings/seals, etc all to fail within 12k miles/1yr?!

I'm initially thinking they did a crap job on the installation/tuning of the rear but I'm lost.

P.S. my Dad drives this Jeep daily and it sees 90+% highway driving only. He is almost never in stop/go traffic.

Any help is much appreciated! :banghead:

dmsfun 05-09-2013 10:46 AM

Re: Rear differential bearings out...again
They did not adjust the preload on the bearings properly, which results in premature failure.

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