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Nolathane Diff Bush Noise Resonating Through Rear End.


mick1378

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  • Moar Powar Babeh
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he personally wouldn't put the superpro solids in if it was his car...

Neither would I. Trying to convince potential buyers that the noise my BA's diff is making is cause by the bushes not by a diff thats about to go nuclear ain't easy.

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If it was auto I would - also if the diffs weren't dodgy with clearances I'd fit them to anything - a solid bush can't create a noise, it can only transfer a noise or vibration that is already there.

If you want to run the comfort bushes be prepared to replace them. Not as often as factory but they won't last forever.

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  • Member For: 11y 2m 18d
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Ah the old custard bushes vs hard problem. As with any other performance part they generally reveal a weakness in another.

Is there anything that can actually be done about the source of the NVH rather than masking it or just living with it?

Get one of those straight cut sequential tremacs, shouldnt hear much else then.

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  • Dropping a turd
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If you can hear the NVH with after-market bushes , then your intake , exhaust, fuel pump, spool , is all to quiet and you need to toughen them up.

Or turn the radio up.

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Im running superpro comforts , nvh drives me a bit crazy when driving for a while , even with the stereo turned up you can still hear it. Not because of the volume of the noise but because of the frequency of the sound it makes . Plays a tune every time I lightly touch the accelerator while on the freeway. Car had 16,000km on it when they were fitted so im guessing the diff was still in good condition.

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  • Dropping a turd
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Aaronm, what type of bushes did Nizpro use in your sons BF? How is the Nvh in that?

Came with stock bushes. Simon put nolathane in at 5000ks

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  • Member For: 10y 6m 11d
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honestly this is a debate that could go back and fourth,I know a number of cars making big power using factory bushes with success,TUFXR6 is one 1000plus rwhp rubber diff bushes with no dramas, just destroy nolethanes,I personally had dramas with them only running 470rwhp no drama since replaced them with rubber.its an each to there own I think

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  • 4 months later...
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Im running superpro comforts , nvh drives me a bit crazy when driving for a while , even with the stereo turned up you can still hear it. Not because of the volume of the noise but because of the frequency of the sound it makes . Plays a tune every time I lightly touch the accelerator while on the freeway. Car had 16,000km on it when they were fitted so im guessing the diff was still in good condition.

Yeah had mine fitted yesterday and it is the same. fricken loud and whines up and down if I just slightly touch the accelerator. Also a bit of clunking and other weird noises.

What success have people had with installing sound deadening. I note someone mentioned that before.

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In an auto with super pro comforts you really shouldn't have any added NVH, or barely noticeable...I'd be questioning the install.

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The suspension shop that installed mine have a good reputation . So I didn't think to questing the install.

I've put sound deadener from the back seat to the boot , you can still hear the wine but doesn't sound as high pitch. It has cut down on road noise a bit too so I'd say it's worth it but don't expect it to fix the noise from the diff.

It might just depend on if you get a good diff from the factory as some people don't seem to notice anymore nvh once they have fitted superpro comfort bushes

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