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[gtrzilla]

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[(OO)SKYLINE(OO)]

Hey man!

Did the car make that noise before or is it only doing this on a cold start?

[br3ndan]

i dun think u would of damaged the diff from jacking it up there.

I jack from their whenever im doing work on the rear end.

Besdies i think thats where you meant to jack it.. as i cant recall anywhere else u can...

Unless you got a hoist.

[gtrzilla]

seems to be more noticeable after jacking it up

or do gtr diffs just sound like this

[(OO)SKYLINE(OO)]

seems to be more noticeable after jacking it up

or do gtr diffs just sound like this

Oh BTW Orion, get a Rear Wheel Alignment done.

Cuz you have change the rear suspension, its put the geometry out of whack and needs to be done cuz its 4WD.

But I don't think that will help with the whirring noise. Or it might...

But when you jacked it up at the diff, I don't think you would have crushed or bent anything in the diff...

Anyway get ya mechanic to check it out.

My diff made a similar noise when rolling and while driving. Sounded like a Wwhhoooo noise. So I got it reconditioned.

[gtrzilla]

... reconditioned diff!!

$$$$ sounds pricey

[(OO)SKYLINE(OO)]

I still got the receipt for my rear diff

About $1380, thats recondition, installed ready to drive and it was not as much as I thought too.

But get it check out 1st.

I did it at Le Mans Automotive in Templestowe.

[vinnie32GTS4]

mine was making the same noise so i changed the diff oil and the whirring sound went away

[bubba]

What did you change in the suspension? aftermarket cradle bushes etc can transfer more noise etc..

[gtrzilla]

just put in stock suspension

i had a major service just done

so there should be new diff oil in there

[GTS4WD]

You would of snapped a cooling fin before doing internal damage to the diff..

Not form the jacking.

Sure your not just Paranoid?.. Happens to me too..

Whirring diffs seem to be common threads in this section.

Just seems like their noisy from factory.

Best advise is change the diff oil.. see the condition its in and put a higher quality product in. See how that goes..

People jump to recondition diffs/'boxes too quicky.

For that price you may aswell buy an after market LSD.

[gtrzilla]

ill have to get them to check the diff oil then on my next service

but i just had a major major service and replaced all fluids, and if anything the diff whirr is louder!

[vinnie32GTS4]

ill have to get them to check the diff oil then on my next service

but i just had a major major service and replaced all fluids, and if anything the diff whirr is louder!

what diff oil did u use???

[gtrzilla]

^^ have no idea

but i just pumped the tyres right up today

and it seems to have made a big difference

[hulk]

what was ur tyre pressure before you pump it that had the whirring noise?

So there are no more noise now?

[gtrzilla]

solved