M56 Differential Bushing

Forum for Infiniti M37, M56 M35h Hybrid and Q70 owners.
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MarseilleExpress
Posts: 8
Joined: Thu Mar 30, 2023 7:08 pm
Car: 2012 Infiniti M56X
2020 Infiniti Q50 Red Sport
2003 BMW 530i
2000 BMW 740i

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I bought Urethane rear differential bushings for my 2012 Infiniti M56X as the main rear one is leaking silicone heavily. Has anyone replaced there differential bushings without removing the subframe totally or have any tips/tricks?


Yoda's Master
Posts: 463
Joined: Tue Jul 10, 2018 11:26 pm
Car: 2012 M56
2009 370z
Location: Rock in the middle of nowhere

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Here you go

m56-rear-subframe-bushing-replacement-w ... 28995.html

Drop the subframe especially since you have no space with awd. It's not that hard. Be careful if you're using the Z1 bushing. You could potentially crush your subframe. My method is risk free and feels great.

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Ilya
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Joined: Fri Apr 23, 2010 11:20 pm
Car: 2011 M56x but I spend a lot of time on my 2015 Kawasaki Vulcan S. Former owner of a 2007 M35x. Also take care of my wife's 2016 QX60.
Location: Charlotte, NC
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Yoda's Master wrote:
Sun May 31, 2026 6:41 pm
Here you go

m56-rear-subframe-bushing-replacement-w ... 28995.html

Drop the subframe especially since you have no space with awd. It's not that hard. Be careful if you're using the Z1 bushing. You could potentially crush your subframe. My method is risk free and feels great.
My epoxy is holding last I knew. But I also realized I never updated that thread with the info from the brace (it didn't work).

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MarseilleExpress
Posts: 8
Joined: Thu Mar 30, 2023 7:08 pm
Car: 2012 Infiniti M56X
2020 Infiniti Q50 Red Sport
2003 BMW 530i
2000 BMW 740i

Post

Yoda's Master wrote:
Sun May 31, 2026 6:41 pm
Here you go

m56-rear-subframe-bushing-replacement-w ... 28995.html

Drop the subframe especially since you have no space with awd. It's not that hard. Be careful if you're using the Z1 bushing. You could potentially crush your subframe. My method is risk free and feels great.
What do you mean by crushing the subframe? As in too big for the hole for it to slide in?

Yoda's Master
Posts: 463
Joined: Tue Jul 10, 2018 11:26 pm
Car: 2012 M56
2009 370z
Location: Rock in the middle of nowhere

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Ilya wrote:
Sun May 31, 2026 8:52 pm
Yoda's Master wrote:
Sun May 31, 2026 6:41 pm
Here you go

m56-rear-subframe-bushing-replacement-w ... 28995.html

Drop the subframe especially since you have no space with awd. It's not that hard. Be careful if you're using the Z1 bushing. You could potentially crush your subframe. My method is risk free and feels great.
My epoxy is holding last I knew. But I also realized I never updated that thread with the info from the brace (it didn't work).
:bigthumb: The motorvate guy's g37 was holding up well also. Yea, i saw some guys on fb saying it didn't fit either :mad:
Just gotta do a q50 diff and axel swap and it'll fit :gapteeth:
MarseilleExpress wrote:
Sun May 31, 2026 10:28 pm
Yoda's Master wrote:
Sun May 31, 2026 6:41 pm
Here you go

m56-rear-subframe-bushing-replacement-w ... 28995.html

Drop the subframe especially since you have no space with awd. It's not that hard. Be careful if you're using the Z1 bushing. You could potentially crush your subframe. My method is risk free and feels great.
What do you mean by crushing the subframe? As in too big for the hole for it to slide in?
there's a video on the Z1 website showing you the subframe is hollow, it doesn't have a support brace permanently welded like the 370z and g37 subframes.

you could just do what Ilya did and use the polyurethane caulking. you can probably do that without dropping the subframe.


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