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2011-2014 V6 Mustang Tech Forum

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Unread 07-29-2013   #1 (permalink)
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Default Driveshaft on my 2014 Mustang V6

This is a diagram of the driveshaft on my 2014 Mustang V6. I went under the car to take a look at it as well. It is exactly as what is shown in the picture. It looks like in two pieces, with the rear end being aluminum, but there is no center bearing or any other support in the middle.

My question is does this one also break at 135 MPH, or this is the reinforced one I can live with?

Thank you.

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Unread 07-29-2013   #2 (permalink)
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There is no reinforced one. They never changed the driveshaft from 2011-2014.

Reference the following threads (pictures are in them, showing the exact same driveshaft):

http://www.allfordmustangs.com/forum...014-v-6-a.html

http://www.allfordmustangs.com/forum...-exploded.html
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Unread 07-30-2013   #3 (permalink)
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It's the same. Get an aftermarket unit for the piece of mind, weight savings and decreased drivetrain loss from the engine's produced power.
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Unread 07-30-2013   #4 (permalink)
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Do any of you guys get a really harsh vibration at about 2500-2700 RPM? Elimination has lead me to believe it's the drive shaft on my `14. I can rev the engine with the clutch disengaged (push pedal in) anywhere in that rev range without the vibration, but if the clutch is engaged it's really bad.
I might just bring it up with the stealership, but if anybody else has experienced, it may be useful to know.
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Unread 07-30-2013   #5 (permalink)
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Quote:
Originally Posted by uh-oh View Post
Do any of you guys get a really harsh vibration at about 2500-2700 RPM? Elimination has lead me to believe it's the drive shaft on my `14. I can rev the engine with the clutch disengaged (push pedal in) anywhere in that rev range without the vibration, but if the clutch is engaged it's really bad.
I might just bring it up with the stealership, but if anybody else has experienced, it may be useful to know.
It's the dual mass flywheel.

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Unread 07-30-2013   #6 (permalink)
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Quote:
Originally Posted by uh-oh View Post
Do any of you guys get a really harsh vibration at about 2500-2700 RPM? Elimination has lead me to believe it's the drive shaft on my `14. I can rev the engine with the clutch disengaged (push pedal in) anywhere in that rev range without the vibration, but if the clutch is engaged it's really bad.
I might just bring it up with the stealership, but if anybody else has experienced, it may be useful to know.
its not the driveshaft, that vibration is common on every 11+ V6. It is due to the dual mass flywheel our transmissions have. The aftermarket driveshaft helps reduce the vibration but it still occurs. Only way to remedy it is to get an aftermarket single flywheel. Your dealership will tell you its normal and there isnt anything wrong, because technically there isnt, its just how the car was designed.


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Unread 07-30-2013   #7 (permalink)
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From everything I've read the vibration around 2500 RPM is normal and indeed caused by the dual mass flywheel. It's a slight annoyance, nothing I can't work around. It does surprise me that Ford let that go for four model years without attempting to fix it though.
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Unread 07-31-2013   #8 (permalink)
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There's nothing to fix with the dual-mass flywheel. It's there to absorb the "piston pounding" from the engine.

If you switch out your flywheel to a single-mass, there will no longer be anything to absorb the engine vibrations, and you'll hear it throughout the rest of your drivetrain (assuming you go lightweight). If you get a steel flywheel, the weight of it will likely dampen the engine vibrations. Yes, the notorious deceleration vibration will completely disappear, but you'll likely get other sounds in its place.
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Unread 08-03-2013   #9 (permalink)
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I just realize that Ford did fix the problem since their later 2013 models. Their old drive shaft could break at 135 MPH, because there is a thin weak part (with a much smaller diameter) connected to a center bearing. The new 2014 driveshaft is basically the same as the aftermarket one-piece driveshaft, with the only difference being the location of the telescopic spline thing under the accordion fold cover.


Below is a picture of the old driveshaft, and an aftermarket aluminium driveshaft. You can see that the aftermarket one is very similar to the 2014 stock one as in the first post.
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Unread 08-03-2013   #10 (permalink)
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Quote:
Originally Posted by Liv4spd View Post
I just realize that Ford did fix the problem since their later 2013 models. Their old drive shaft could break at 135 MPH, because there is a thin weak part (with a much smaller diameter) connected to a center bearing. The new 2014 driveshaft is basically the same as the aftermarket one-piece driveshaft, with the only difference being the location of the telescopic spline thing under the accordion fold cover.


Below is a picture of the old driveshaft, and an aftermarket aluminium driveshaft. You can see that the aftermarket one is very similar to the 2014 stock one as in the first post.
This post is incorrect. Go into the threads I posted earlier. Someone posted a picture of their 2014 V6 driveshaft. It's exactly the same as the first picture. They driveshaft has not changed since 2011. This thread is made every single year, and every single year we come to the same conclusion.
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Unread 08-03-2013   #11 (permalink)
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Specifically take a look at these: http://www.allfordmustangs.com/forum...ml#post4715297
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Unread 08-03-2013   #12 (permalink)
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The picture of the old driveshaft is the one used in the G.T. Our V-6's don't use the same driveshaft as the G.T.
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Unread 08-03-2013   #13 (permalink)
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Yup, those are my pics, and the 2014 carries the same part number and design as the part that is prone to failure
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