My Avalanche has 45k on it and the pinion and carrier bearings failed. I took it
to the chevy dealer, big mistake. $1100 to replace the bearings. I
told them to seal it back up I was coming to get it. A local mechanic
quoted a price of $400 for the bearings. Since he is so cheap I am
going to have him install 4.10 gears also. Chevy charged me $247 just to
inspect the rear end. This included 3 quarts of fluid at $26 a quart,
so beware. Get your rear diff. checked before it goes out of
warranty. Still love the Avalance, but have never had a vehicle that lost
bearings period.
Planning on writing to Chevrolet about this. Do not expect any response from them, but have to give my 2 cents worth. If it is a housing problem and I lose another set of bearing I will file a civil suit.