Rear end whine 2010 GT - Mustang Evolution

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Old 09-04-2013, 11:36 PM   #1
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Rear end whine 2010 GT

Someone please give me some guidance here. While Im driving the car, at about 25mph you can began to here a low whine coming from the rear end that steadily gets louder as your speed increases. This is during accel, decel, cruising, everything! its just a constant whine from the rear end that gets louder as the speed gets faster. Car is a 5 speed manual, and the sticker on the rear diff says its got 3.73s.. Now im no mechanical genius, but im sure its not supposed to be whining like that. I might add that its NOT unbearable. Its just the fact that its there and i know it shouldnt be, and its ruining me trying to enjoy the sound of the engine while driving with the radio off! haha but seriously though this is my very first mustang and I love the car so far just purchased it a couple weeks ago, and i want to get this problem resolved before it becomes something more serious. Thanks for any input/advice!
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Old 09-04-2013, 11:41 PM   #2
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Mine did that and it was the carrier bearing
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Old 09-04-2013, 11:49 PM   #3
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What did it end up costing you to fix? just a local tranny shop or dealer? also is the 3.73 setup worth sticking with on this 5 speed manual or should i maybe start looking at 3.31s?
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Old 09-04-2013, 11:54 PM   #4
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Mine did that and it was the carrier bearing
I had a Ranger do the very same thing. Carrier bearing was at fault. In my opinion, if it was a ring/pinion, the whine would be silenced on deceleration. Am I right on that or experiencing CRS?
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Old 09-05-2013, 12:00 AM   #5
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Originally Posted by Red_Stang View Post
Someone please give me some guidance here. While Im driving the car, at about 25mph you can began to here a low whine coming from the rear end that steadily gets louder as your speed increases. This is during accel, decel, cruising, everything! its just a constant whine from the rear end that gets louder as the speed gets faster. Car is a 5 speed manual, and the sticker on the rear diff says its got 3.73s.. Now im no mechanical genius, but im sure its not supposed to be whining like that. I might add that its NOT unbearable. Its just the fact that its there and i know it shouldnt be, and its ruining me trying to enjoy the sound of the engine while driving with the radio off! haha but seriously though this is my very first mustang and I love the car so far just purchased it a couple weeks ago, and i want to get this problem resolved before it becomes something more serious. Thanks for any input/advice!
still have warranty ? if so juSt take it in and take someone for a ride and show them exactly what's happening and it should be covered.
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Old 09-05-2013, 12:05 AM   #6
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I bought the car and it was one month outside of its standard 3 year/36k miles warranty, however I did purchase an extended warranty for an additional 3 years/36k I need to check to see if its one of the things covered... everyone seems to agree that its a carrier bearing?
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Old 09-05-2013, 12:28 AM   #7
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I bought the car and it was one month outside of its standard 3 year/36k miles warranty, however I did purchase an extended warranty for an additional 3 years/36k I need to check to see if its one of the things covered... everyone seems to agree that its a carrier bearing?
if it's bumper to bumper I don't see why not!
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Old 09-05-2013, 12:33 AM   #8
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Originally Posted by Red_Stang View Post
I bought the car and it was one month outside of its standard 3 year/36k miles warranty, however I did purchase an extended warranty for an additional 3 years/36k I need to check to see if its one of the things covered... everyone seems to agree that its a carrier bearing?
My 2014's New Vehicle Limited Warranty (bumper-to-bumper) term is 3yr/36,000 but, my drivetrain warranty is 5yr/60,000. My warranty specifically states that it covers the following:

Axle Shafts
Bearings (front and rear)
Center Support Bearings
Drive Axle Housing (including all internal parts)
Drive Shafts
Propeller Shafts
Retainers
Supports
Seals
Gaskets
Universal and Constant Velocity Joints

Wasn't your standard coverage the same? If so, the standard warranty still covers you, provided your car still falls within the 5yr/60,000 window.
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Old 09-05-2013, 01:23 AM   #9
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It's deff the pin/bearing thingy above mentioned. I just had a local shop install my 3.73s in my 2013 gt, and when they went to drive it they said it was the exact noise your experiencing. It means its not sitting right and could be off. My parts were ordered from americanmuscle and somehow the part was .3 inches off from being a snug fit, they ordered a new part and today finally got it back. Insane difference in take off and 0-60 time now. I love em (just make sure your car is retuned cause your spedo will be off) but it costed me 350 total to get it done. Great work, long time, but it's worth them doing all they can to make it work
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Old 09-05-2013, 08:02 AM   #10
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Well I had a friend in a shop so it just cost me 165. But because of the worry that shavings would get in other places by the time I had it fixed I put in a total bearing kit in the rear.
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Old 09-05-2013, 08:51 AM   #11
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That's normal with having aftermarket gears
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Old 09-05-2013, 09:00 AM   #12
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That's normal with having aftermarket gears
Not when there installed correctly.
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Old 09-05-2013, 09:20 AM   #13
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my car still falls under the 5/60k drivetrain.. i didnt even think of that!! thank sooo much! best news i could have gotten! ha
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Old 09-05-2013, 12:19 PM   #14
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my car still falls under the 5/60k drivetrain.. i didnt even think of that!! thank sooo much! best news i could have gotten! ha
Glad I could help. No sense in you being deprived or uninformed of your right to standard coverage useage, eventhough you have an extended warranty. Please let us know how it goes and what the problem was.
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