4th gear syncro gone

[[[d a n n y]]]

Hey all

my 4th syncro is gone...

where is a good cheap place to get it fixed?

[Jordan]

An Automatic or Manual gearbox repairers I would think.

Tell me how you go, I am getting a high speed crunch between 4th and 5th.

[[[d a n n y]]]

yeap same here i am, getting highspeed crunch between 3rd to 4th

and during downsifts..

and idea on the price?

[jake32]

over 4000rpm 4th gear crunch also

will be replacing syncro shortly

heard this is common problem on early gtr`s...sounds like the truth

[cameron]

I am getting a high speed crunch between 4th and 5th.

Is this normal or does it mean the syncro's are on their way out ?, i've seen many skylines do this.

[[[d a n n y]]]

yeah..seems like it

could result in gearbox damage..

[Bass Junky]

Maybe not Synchros.

could be selector mechanisms.

Put the Redline Shockproof in and apparently it goes away.

Mine does it too.

[[[d a n n y]]]

Maybe not Synchros.

could be selector mechanisms.

Put the Redline Shockproof in and apparently it goes away.

Mine does it too.

u mean the gear box oil?

[JXL]

Maybe not Synchros.

could be selector mechanisms.

Put the Redline Shockproof in and apparently it goes away.

Mine does it too.

so you have put the Redline stuff in but you are saying that you still have the noise.

i've got the crunch from 4th to 5th at over 3500rpm, have to let the revs come down a bit before switching the gears. 5th gear does work though i just cant change real fast.

[someonestolecc]

Yes gearbox oil.

For all the people who swear by this stuff as it making crunches go away make me wonder if they've ever tried it.

[JXL]

thats what i want to know, i know gear box oil is part of a service thing but using Redline stuff i haven't bought but know its damn expensive stuff so not going to buy it and its not gonna fix the job.

[Suspense]

I got a crunch between 3rd and 4th, when giving the car a hit...

Put Redline Shockproof in... No Difference!

I guess it really varies from situation to situation... for some it gets rid of the crunching totally

[JXL]

hmmmmm now i'm wondering if its worth taking the punt on the redline.

anyone got rough prices??

Redline Shockproof Synthetic gear & diff oil ($30 per litre - great for gearboxes with worn synchros) ---- thats from unique autosports servicing dunno where they are website is www.nismo.com.au --- yeah its nismo.

Redline Gear Oil - Shockproof Lightweight 3.78L $113.71

thats from modyourcar.com.au

so how many litres do you actually need of the stuff???

[PATR33]

hmmmmm now i'm wondering if its worth taking the punt on the redline.

anyone got rough prices??

Redline Shockproof Synthetic gear & diff oil ($30 per litre - great for gearboxes with worn synchros) ---- thats from unique autosports servicing dunno where they are website is www.nismo.com.au --- yeah its nismo.

Redline Gear Oil - Shockproof Lightweight 3.78L  $113.71

thats from modyourcar.com.au  

so how many litres do you actually need of the stuff???

That price is about right I paid about $110(WRX Club discount ask for it you will get it!) from oil world. See www.oilworld.com.au

My brother has it in the WRX and has made changes a little smoother.

I also have a crunch issue at high revs from 1st - 2nd & 3rd - 4th

I might try Redline at my next flush.

[Bass Junky]

I haven't got the Oil, but my gearbox does crunch into 4th if I'm rushing it or changing wrong.

Pretty soon I will be putting in the Redline stuff.

Gotta try that before I got and rebuild the box.

I put in a friction reducing stuff when I changed the oil last time, not sure whether that had anything to do with the crunch appearing.