Question about 2006 Chevrolet Blazer

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Water in front differential

I have a 2007 Chev. Tahoe with 54,000 miles. I have recently had a grinding in the frontend and took it to my local dealership. Dealership said water was in the front differential and needs to be replaced or rebuilt (approximately $2400). Dealership said only way this could have happened is for the vehicle to have been in two to three feet of water and are refusing to apply the warranty for the repairs. I am the only one who has driven the vehicle and it has never been in six inches of water, let alone two to three feet. Ever heard of similar issue?

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  • big12footbal Feb 17, 2009

    The dealership said that was an option, but could not guarantee how long the new bearings would last.

    I saw the gear lube and it appeared to have water in it, but wanted to know if anybody else has had a similar problem, or if anyone had an idea how water could have gotten into the differential.

  • yadayada
    yadayada May 11, 2010

    anybody who goes through water over a foot high has this chance of water getting into the diff.

  • yadayada
    yadayada May 11, 2010

    replace the bearing and extend the diff vent to keep it out of the water column.


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The dealership is trying to get out pf paying for the problem. I'm not going to say this is a common problem but it does seem to happen a lot. The axle seals leak quite frequently also the pinion seal leaks.There might be also be a problem with the vent, the hose could have came loose or hole in it. There is also an oring seal around the filler hole that may not have been installed properly.

If the dealership fails to help you call the GM customer assistance center and lodge a complaint. Chevrolet Customer Assistance Center 1-800-222-1020

Posted on Aug 09, 2009

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