We still have to help Bigfish Larry out here before he goes into the shop. He's got problems with his thing with the tires so we need to help best as we can.
I have never heard of unusual hub problems with the GM's. Mine and most of the guys I know have had no problems. Not to say there isn't something out there though and you might find out by asking the GM dealership or inquiring around the internet. Hopefully Larry you got the first hub replaced on your warranty.
First, I would ask them exactly what on the hub went bad and what they think is the cause. I would ask them to check out the operation of the 4X4 as well to make sure it is operating properly. Ask them to find the reason for the wear.
Secondly, Tell the dealershipship that you think this is unusual and you are concerned that you had either bad parts or a bum front end that is causing excessive wear to the components. Ask the dealer to discuss this with the GM regional manager (who visits the dealerships regularly) and see if the regional manager will extend your warranty on the driveline components from GM .
Third, if you can't get the warranty extended you may still be able to purchase an extension. I used to get those offers in the mail all the time, when the vehicle was less than 3 years old.
Ed
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