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Gear Crunch

700HP-GTR33

By 700HP-GTR33,
in Victoria

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700HP-GTR33 Mentor

700HP-GTR33

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Hey there,

I have a problem with my gearbox (RB26)....i am crunching gear 3 to 4 at high revs,

At low revs all is fine

Does anyone know what it could be, clutch adjustment , syncro or needs a service?

Who does a good job out there repairing this sort of thing?

Thanks in advance

Tekin

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700HP-GTR33 Mentor

700HP-GTR33

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Syncro......fairly common thing for Nissans

STOCKGTR has the same problem

I have never serviced it.......who can....i suppose all they do is change the oil.

Or are there other things to look out for when you take the cover off?

How much roughly to repair if it is the syncros.?

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700HP-GTR33 Mentor

700HP-GTR33

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I've heard people over flow the gerbox by 50 ml to make it a bit better. I've had 3 nissan gearboxes crunch into 4th and one I had to replace because of 2nd synchro.

I have heard there are special oils you need with the RB26 gearbox .

And that overfilling them and having a cooler for them works well

What sort of oil is the best for these things?

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SXR Rising Star

SXR

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from memory a set of 4th gear syncro is about $130, however while you have the box apart you might wanna change 2nd and 3rd.

I would say all up with labour you'll be looking around $1k.

Get the syncros done asap, if you leave it too long you start screwing up the gears which will be more $$$

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700HP-GTR33 Mentor

700HP-GTR33

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from memory a set of 4th gear syncro is about $130, however while you have the box apart you might wanna change 2nd and 3rd.

I would say all up with labour you'll be looking around $1k.

Get the syncros done asap, if you leave it too long you start screwing up the gears which will be more $$$

Thanks for that advice guys....I suppose Ill have to look up a transmission specialist on Monday. :D

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