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castrol syntrax (synthetic) i have used before and is very good

redline, lightweight shock proof has also been used with success, but i would check for sure if these are suitable for your gertrag gearbox before buying them

there is also a motul synthetic gear oill which i imagine would be quite good.

I can't say for sure if they will ease the crunching though. that could be caused by any number of things.

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I've used the Motul oil in my R32 GTR gear box - but it made the 'crunching' worse.

It did not seem to like the heat - 'cause it was especially bad once the car had warmed up. Getting into 1st gear at the lights was an interesting experience for example

I'm now using the Redline Shock Proof - and it's MUCH better :P

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I don't understand why some people swear by shockproof light and yet the directions say that it's not for gearboxes and some people say not to use it? :confused:

I used heavy in my gearbox when it was stuffed, and sure enough it died with heavy in it.

I'm going to put light in my new box but ... still a bit confused.

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I don't understand why some people swear by shockproof light and yet the directions say that it's not for gearboxes and some people say not to use it? :confused:

Because Redline explicitly recommends it?

http://www.redlineoil.com.au/oil-finder-de...&ProductID=7592

LW.

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Because Redline explicitly recommends it?

http://www.redlineoil.com.au/oil-finder-de...&ProductID=7592

LW.

Thanks,

I could have sworn I read somewhere not to use shockproof in syncro boxes. Ahh I dono I ended up buying shockproof light for the gearbox and shockproof heavy for my mechanical diff.

Thanks for the info seems I was trippin :D

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