New Vibrations

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,618 POSTS
I am wondering if the differential fluid is low or needs to be changed. It sounds like the ring and pinion gears are binding. Here is a video so we can check the gears and fluid out:

https://youtu.be/6F26Kir0OCg

Let me know.
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Monday, November 12th, 2018 AT 10:15 AM
Tiny
HACKETT77
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  • 8 POSTS
I have changed the fluid 3 times now, in less than 50 miles. And last stop was Differential shop, and all checked out there, as well
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Monday, November 12th, 2018 AT 11:10 AM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I'm Danny
I hate to be the bearer of bad news but the Chevy Avalanche Rear Differentials were prone to problems. I would suggest going to a more reputable differential shop. This is a know fact. You can change the Differential gear oil as long/few few miles as you like but it will not change the problem with the Carrier/Carrier Bearing problems. This is the reason why GM discontinued that model and it's all in the junkyards now. Hope this helps and thanks for using 2CarPros.
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Tuesday, November 13th, 2018 AT 4:31 AM
Tiny
HACKETT77
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Haha, that's funny, as I see these driving around everywhere, and are scarce in junkyards (trust me, I have a hard time finding parts). And, a "more reputable dif shop"? This is the best one in the valley, look them up AZ Differential
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Tuesday, November 13th, 2018 AT 4:21 PM
Tiny
KEN L
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It is really the only thing left. Please let us know what they find.
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Wednesday, November 14th, 2018 AT 10:13 AM
Tiny
HACKETT77
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  • 8 POSTS
Just took it in, for yet another differential diagnostic this morning, and another $140 fee, and all checks out good, like the other shop said
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Wednesday, November 14th, 2018 AT 11:18 AM
Tiny
KEN L
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I would have the driveshaft balanced next. Its difficult for us to tell without driving it or having a video showing what's going on.
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Thursday, November 15th, 2018 AT 10:07 AM
Tiny
HACKETT77
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  • 8 POSTS
I'm just gonna drive it the way it is. Already over $2,000 in people guessing. Weird as people don't know anything about a 3/4 ton Avalanche
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Thursday, November 15th, 2018 AT 6:19 PM
Tiny
KEN L
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At least this didn't cost you anything. If I could drive it I could figure it out. You close to California?
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Friday, November 16th, 2018 AT 12:53 PM

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