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I had intenitons of doing a proper write up, but must have got lazy and just put the photos in that thread.

FYI, i didnt have to use the supplied washerto space the diff anywhere, I think it might be for S-chassis? Or maybe Z32. But anyway.

I find when I drive around in the wet for a little while I end up getting a fair knock in the back. It scared me a bit the first few times, but now I know what it is, I dont think about it so much lol. Would be nice to fix it, so maybe I will put the super-pro ones in one day. Want to do subframe bushes so should do it all then

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I find when I drive around in the wet for a little while I end up getting a fair knock in the back. It scared me a bit the first few times, but now I know what it is, I dont think about it so much lol. Would be nice to fix it, so maybe I will put the super-pro ones in one day. Want to do subframe bushes so should do it all then

So you reckon that's the rear side bushes of the diff? Sounds odd, especially if it's only in the wet.

Is anyone else running the Nolathane/Whiteline diff bushes, how are yours going?

Only because they used to be press fit bushes. The front diff mounts I have are whiteline ones but they are a similar design to the standard ones anyway.

Im relatively sure its the rear bushes. Its not a big issue. The noise goes away when it all dries up. But it does annoy me a little

Diff is back in with SPF bushes in front and Nolathane in the rear. I am not super impressed with the Nolathane ones either, they don't feel super tight and the diff sits a bit further back that with the OEM ones. I tried with the spacers too but it wouldn't tighten up properly. Very easy to install though obviously and at least the bolt hole is the right size unlike the SPFs...

I'll let you know how if feels once I've got the rear back together, need to slap the suspension and HICAS delete in there.

HICAS Eliminator kit and suspension are in, just needs rear seats and exhaust back in now. Although I might get my brakes tomorrow so will leave it on the stands for a bit longer ;)

I thought you didnt want to wait for replacement rear bushes from super pro?

Good point - I haven't even raised it with the supplier as yet. From previous experience warranty claims take ages so I've gone Nolathane for the bushes for now. Brakes didn't arrive either (sad face) so I'll put it all together tomorrow, at least I will have a car that is drivable... will be nice to get some groceries after two weeks :)

The car is back together since last night and the clunk from the diff is gone. The HICAS delete feels fine too, however it will need a proper alignment soon of course.

I wasn't happy with how the diff sat with or without the supplied 7mm spacers so I ended up putting a standard 2.5mm washer in there that seems to work well. I'll post photos of the whole project at a later date.

Thanks heaps for your input everyone, especially 89CAL and GTSBoy, extremely helpful!!

Can you do me a favour? Just spray underneath the car with some water (fair bit) and then go for a drive, mine usually clunks when taking off from a standstill

Interested to see if the washers have helped, I didn't bother fitting the suplied spacer because it was no good at all, but might fit a standard washer as you've done if you dont have any issues with clunks etc.

Can you do me a favour? Just spray underneath the car with some water (fair bit) and then go for a drive, mine usually clunks when taking off from a standstill

Interested to see if the washers have helped, I didn't bother fitting the suplied spacer because it was no good at all, but might fit a standard washer as you've done if you dont have any issues with clunks etc.

Yeah man I'll check this once the car is a bit dirtier just washed it after a couple of weeks :)

Did you grease the bushes before putting them in? I wonder if that could cause noise.

Also out of curiosity, when you did yours, did you disconnect drive shafts at all or just drop the diff a bit?

I used the supplied grease with mine. I think (but it was a while ago) I installed them dry, then noticed the noise and thought I would try with the grease, but didn't really make a difference.

I think I was going to remove the diff completely till I realised I'd have to remove the rear of the exhaust and Couldnt be bothered getting gaskets (even though in hindsight that would have been easy lol) so I probably removed the driveshafts off the diff and hung the diff down.

  • 2 weeks later...

Yanack Racing make unreal diff bushes.

I have these for the S15. Quality is high end & they're chromoly. Made in Japan

Thanks, that's interesting, I found some at RHDJapan: http://www.rhdjapan.com/yanack-diff-mount-rigid-collar-set-rear-nissan-s14-s15-r33-r34-c34-c35.html

Based on the pics they're solid metal, a bit like these GKTech items: http://www.gktech.com/index.php/s14-s15-solid-diff-bushes.html

Probably good for track/drift but not sure if I'd want to run solid bushes in a road car, experiences anyone?

Can you do me a favour? Just spray underneath the car with some water (fair bit) and then go for a drive, mine usually clunks when taking off from a standstill

Interested to see if the washers have helped, I didn't bother fitting the suplied spacer because it was no good at all, but might fit a standard washer as you've done if you dont have any issues with clunks etc.

I drove to work in torrential rain this morning, like most of Melbourne it seemed. I can't really point to any difference in noise/clunks/performance between dry and wet.

I'm not overly convinced that the problem you're having is directly related to the diff bushes, however can't think of an alternative cause either... Hope you get it sorted.

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