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Blown rear differential mount bushing

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Old 03-16-2015 | 05:55 PM
  #16  
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Originally Posted by MrTLFsr
...
For what it's worth, I'll have the them ask the tech about how he feels about installing a different bushing.
He probably won't know. He just swaps entire assemblies.
Old 03-16-2015 | 06:22 PM
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Originally Posted by MrTLFsr
The service manager just told me Infiniti would cover mines.
However, it looks like this is the "weak link" in this car, especially if you want to drive it hard. Mine is a manual with a few runs down the quarter mile, so I'm sure that didn't help. Anybody have an auto with this issue?

For what it's worth, I'll have the them ask the tech about how he feels about installing a different bushing.

I ran out of my warranty, so I was looking at paying out of pocket. I was told others just deal with the loud bang noise in shifting hard and it wouldn't effect other parts. I sure hope that is true. I have a 6 MT as well and I believe the MTs have more complaints since we slam second hard vs autos.
Old 03-16-2015 | 08:35 PM
  #18  
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Originally Posted by Xcalibur
I ran out of my warranty, so I was looking at paying out of pocket. I was told others just deal with the loud bang noise in shifting hard and it wouldn't effect other parts. I sure hope that is true. I have a 6 MT as well and I believe the MTs have more complaints since we slam second hard vs autos.
The first to second shift theory makes perfect sense! Guess I'll have to granny shift from now on
Old 03-17-2015 | 03:46 PM
  #19  
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Originally Posted by vqsmile
He probably won't know. He just swaps entire assemblies.
You're correct about the dealer. Swap the entire sub-frame and that's it.
I talked to the shop that tuned the car and they are also aware of this issue, especially with the 370z.
They charge 5hrs of labor to install the aftermarket bushing. I'll just wait and see how this one holds up.
Old 03-18-2015 | 10:24 AM
  #20  
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Originally Posted by MrTLFsr
Did they replace the entire subframe? As mentioned, the bushings are very difficult to remove/replace by themselves.
they replaced the entire subframe; it seems such a waste.
Old 03-18-2015 | 05:33 PM
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Originally Posted by fmrlegend
they replaced the entire subframe; it seems such a waste.
Agreed! I even tried to get him to hold off on the part and install the aftermarket bushing instead but he's strictly by the book. There is a shop that will do it but will charge 4-5hrs labor.
Old 03-18-2015 | 06:47 PM
  #22  
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Guys, this is really no different than the practice of swapping out the entire rear timing cover for the sake of a few gaskets, or like the complete steering wheel replacements they used to do to fix the steering wheel trim on the early V36 sedan (before they came out with a discrete part). The logic seems incomprehensible, but I'm pretty sure it's just bean counter stuff.
Old 03-19-2015 | 03:41 PM
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Problem....

Blown rear differential mount bushing-image-1574949891.jpg



Blown rear differential mount bushing-image-2766916476.jpg


Solution.... Along with other goodies



Blown rear differential mount bushing-image-2388519460.jpg
Old 03-19-2015 | 06:33 PM
  #24  
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Originally Posted by Synolimit
Solid fill will be windshield black glue they use. We used it for WRX tranny bushing.

I'll probably do this when mine goes. Unless there's a reason to drop the rear end (Quaif or R&P).
Old 03-19-2015 | 07:32 PM
  #25  
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What is that "bearing wheel" in Nissan packaging?

Last edited by Dough1397; 03-19-2015 at 07:38 PM.
Old 03-19-2015 | 07:38 PM
  #26  
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Originally Posted by Dough1397
What is that "bearing wheel" in Nissan packaging?
That would be an axle bearing (aka "other goodies")

2015 Infiniti Q40 Parts - Online Infiniti Parts
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Old 03-19-2015 | 11:45 PM
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Originally Posted by Dough1397
What is that "bearing wheel" in Nissan packaging?
Differential bearing for my 4.08 gears.
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Old 03-23-2015 | 11:19 PM
  #28  
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I just found out mine started leaking or showing dripping in the driveway today. So can I go for a bit before changing it, several months? I am a teacher and coach so I can probably get the recommended aftermarket bushing done in the summer.

I cannot risk my car being out for the moment so I do not want to think of attempting it yet. The dealer quoted $1600 for the dealer to fix it and there is no way I would consider that.

2010 G37S Sedan
Old 03-23-2015 | 11:42 PM
  #29  
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Originally Posted by PongSanity
Differential bearing for my 4.08 gears.
I'm about to purchase 4.08s... I thought all I needed was the gears and this set:
Nissan rear differential seals and bearings kit - 350z G35 370z G37

Is there a better option than that? What are the benefits? Thanks!!
Old 03-24-2015 | 07:48 AM
  #30  
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But the kit. either Z1Motorsports kit or the Nismo shop. Thought it would've been cheaper buying parts individually.... It wasn't.

Last edited by PongSanity; 03-24-2015 at 01:16 PM.
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