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Hey hows it going ive got a r33 gts-t and my gearbox recently has been whining latetly it happens in all gears from about 3000 rpm im not sure were i could possible start and whats causing it. Though i do have to admit i did do a 2nd gear powerslide couple nights before that and i am running stock clutch. However i dont get any gear crunches or have any problems while driving or as if the gears are slipping, its just this large whine and i feel the car is a bit slower though espically when it starts to whine.

I have read on the net about other whining issues but i couldnt relate to any of them that compared to mine. As mine just happens from 3000rpm to the rev limit.

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I think it is more likely to be your diff.

Usually t is due to lack of oil or lack of good quality oil. If it's the diff it will be a bearing and will cost you about $500 to fix, if it's gearbox it will be the input shaft bearing (you hope) but that's rare, or the hard casing is worn off the countershaft/4th gear(input shaft) <--- more common

So would you recommend i go to a transmission specalist and get them to tell me whats exactly wrong or is there any way i can check it my self, cause if its the countershaft/4th gear input would i have to take out the gearbox and check. The reason i am asking is its not really a problem to have my 33 off the road as i got other cars i can drive, as well i wouldnt mind saving some money.

Check the oil in the box and diff as soon as you can. If you have to drive before checking them, do so as gently as possible.

If the either level is low, top it up and see if the noise goes away (unlikely, but worth a shot).

If the levels are both normal, take it to a specialist.

When was the last time the oils were replaced?

Hey hows it going ive got a r33 gts-t and my gearbox recently has been whining latetly it happens in all gears from about 3000 rpm im not sure were i could possible start and whats causing it.

It's called a turbo! :P

Okay i took it out for a drive the noise is coming from the back so im guessing the diff, would you recommend me taking out the diff and having a look and if its a bearing is there any chance i can fix it at home?

Okay i took it out for a drive the noise is coming from the back so im guessing the diff, would you recommend me taking out the diff and having a look and if its a bearing is there any chance i can fix it at home?

Absolutely can.

As long as you know what you are doing and have the correct tools to do backlash and preload. The pinion bearings are usually available ex-melbourne from Nissan. You can possibly source them aftermarket but I wouldn't risk it as they'll give you a bearing with the wrong clearance if they don't know what they're doing.

Usually punches and hammers are the only thing required with a bearing change. If you put everything back exactly how it came out inc the shims all on the correct sides etc, 99.9% of the time they go back to the same backlash as before. The preload you must do by feel and it's not something you can be taught by text. Best I can do is say - loose enough to turn by hand - tight enough that it's like undoing a jam jar.

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