Diff bush replacement

[LesF]

Hi, I have a 2010 370GT skyline coupe, CKV36, with a ruptured differential bushing.  The local Nissan dealers tell me their answer is to replace the entire sub-frame, which includes considerable man hours, on top of the parts costs.

It all looks identical to the G35/G37 Infiniti, as described in the below YT vid,  where there is a suggestion that an aftermarket replacement bush can be inserted, rather than replacing the entire sub-frame.  What is the preferred way to deal with this?  Has anybody found a satisfactory alternative bush and successfully had it replaced?

 

 

 

 

 

[GTSBoy]

Given that Whiteline have a poly bush kit (https://www.ebay.com.au/itm/Whiteline-Rear-Diff-Mount-Front-Bush-For-Nissan-Skyline-V35-V36-Stagea-M35/192741676619?fits=Model%3ASkyline&epid=1847214044&hash=item2ce04c964b:g:MS0AAOSwOI5dVAQV&frcectupt=true) available, I'd be sure that all the other usual suspects would too. Thus there should be no doubt that you can just flick the old Nissan elastogoosh bush and replace with something else.

[LesF]

Good to know.  I would like to hear some people's experiences with these tho.  The original had two chambers inside the rubber filled with silicone, which would have given a certain amount of movement.  I don't know the effect of going to something firmer or softer.

I have taken the temporary step of injecting some silicone based caulking, which is firm but I expect it will crumble away quite fast.  It seems to have got rid of a slight knock it usedta have anyway.

 

 

[GTSBoy]

Squishy bushes are comfortable by sloppy. Poly bushes add a certain amount of NVH. Most Nissans older than yours have at least poly, if not alloy bushes all through the back end by now.

[ka86]

For the bushings I bought this:

https://www.z1motorsports.com/z1-products/z1-motorsports/z1-motorsports-urethane-rear-differential-bushings-p-10356.html

For removal I bought this:

https://www.z1motorsports.com/transmission-driveline/z1-motorsports/z1-motorsports-rear-differential-bushing-removal-tool-370z-g37-p-11086.html

I didn't have time to remove it myself but when I had the clutch replaced, had it swapped at the same time.

My old sub frame bushing was well torn. The replacement made a difference. The tool to remove helped as well (I still have my old one, just lost one part of it).

I got it when Z1 Motorsports had a sale.

 

Edited September 13, 2019 by ka86

[sonicii]

If it is the same as the V35, you can only buy an aftermarket bush for the rear mount, I tried to find rubber bushes, but  had no luck, so Poly bushes might be your only option for the V36 too.

I am not a fan of Poly for a daily either, it falls apart too quick and causes all kinds of squeaks and creaks when it gets a bit dirty

[V35_Paul]

I've had mine replaced with some poly ones

Can't tell the difference

fits G35 and G37