R32 Gtr Gearbox

[T-Rex]

My 1994 R32 Gearbox is very tired, the return springs are worn out or loose or something, the synchro's in a couple of the gears are worn out, and there is a horrible bearing noise or something that i havn't been able to locate and i think its also coming from the gearbox. So im looking at replacing it with a brand new standard item, im not at all interested in buying second hand or even restored.

I thought about rebuilding it with with PPG's or similar but i don't want to spend the $$$ where i don't have to.

Is there a known preferred place to buy brand new? The only place i know about is justjap.com and they have them for $3300. Are there any other Australian suppliers i should try?

Thanks,

Shaun

[T04GTR]

as far as im aware. they get them from japan direct i think

[T-Rex]

I believe that would be the case. Last time i checked i could get one delivered through RHD Japan or Nengun, can't remember which one, for about $3000 delivered. But i am happy to support an Aussie company if they can do a good price.

[MrStabby]

An option is the series 3 R33 box (at the same cost last time i looked), and swapping the bellhousing on your existing box. That way you get the updated series 3 internals (IIRC extra synchros on 3rd and 4th, and a few other things).

[T-Rex]

An option is the series 3 R33 box (at the same cost last time i looked), and swapping the bellhousing on your existing box. That way you get the updated series 3 internals (IIRC extra synchros on 3rd and 4th, and a few other things).

That sounds like a good option. Do you know if the final gear ratio will remain the same or similar? Im pretty green when it comes to GTR's and what fits and what doesn't. I come from a background of WRX's..

[Beer Baron]

yeah all the gear ratios 1-5 are the same in R32 and R33 and final drive (in this case the front and rear diff ratios) are the same in R32 and R33 as well (4.111:1). I would just go with the nengun or RHD box. in fact if you order an R32 box chances are it's an R33 S3 box just with 32 bellhousing as they don't make a number if the internal parts for R32 boxes anymore so all are probably built to the later spec.

[T-Rex]

Interesting.. I will have to contact RHD and see what price they can do as they don't have them listed on the site. In terms of taking the box out, if using a hoist would you suggest dropping the motor and gearbox together or just doing the gearbox on its own? I will be doing a few things like engine mounts, hoses, etc at the same time.

[dorifticon]

Interesting.. I will have to contact RHD and see what price they can do as they don't have them listed on the site. In terms of taking the box out, if using a hoist would you suggest dropping the motor and gearbox together or just doing the gearbox on its own? I will be doing a few things like engine mounts, hoses, etc at the same time.

It's a straight six motor which is long itself, coupled to a ridiculously long gearbox.

I tried to do an engine r&r with the gearbox in and ended up bending a clutch plate.

If I had to do it again, I would prop the car up as high as I could (front and rear wheels) with engine stands and 10 layers of redundancy for safety.

Then I would uncouple the rear shaft, loosen the engine mounts and let the gearbox drop slightly to get to the top 2 bolts.

Then I'd undo everthing else, (front driveshaft to transfer case) and put a trolley jack under the gearbox to take the weight.

Then, with a friend, undo the rest of the gearbox bolts and slight it out.

I think other people have done it with engine and trans attached out the bonnet, but I just couldn't see how it was possible myself.

[T-Rex]

It's a straight six motor which is long itself, coupled to a ridiculously long gearbox.

I tried to do an engine r&r with the gearbox in and ended up bending a clutch plate.

If I had to do it again, I would prop the car up as high as I could (front and rear wheels) with engine stands and 10 layers of redundancy for safety.

Then I would uncouple the rear shaft, loosen the engine mounts and let the gearbox drop slightly to get to the top 2 bolts.

Then I'd undo everthing else, (front driveshaft to transfer case) and put a trolley jack under the gearbox to take the weight.

Then, with a friend, undo the rest of the gearbox bolts and slight it out.

I think other people have done it with engine and trans attached out the bonnet, but I just couldn't see how it was possible myself.

By the sounds of that i will take it as it comes..

New box from RHD Japan is $2850 delivered, plus taxes i suppose.

[Marlin]

Yep, which will get it so close to Just Jap it don't matter......

[T-Rex]

Yep, which will get it so close to Just Jap it don't matter......

That's what i was thinking.. I will get in contact with them when i'm ready to purchase and go from there i think.

[R31Nismoid]

JAGR33 is selling a 500km old reco S3 gearbox, whilst not "brand new", its as close as you'll get.

[T-Rex]

JAGR33 is selling a 500km old reco S3 gearbox, whilst not "brand new", its as close as you'll get.

Thanks but no, I have had the worst luck with second hand parts so I'm willing to pay more or "get ripped off" to be safe. Bought a set of $3500 coil-overs once (bought for $1500), I was showed a reciept showing they were purchased 6 months prior, they looked spotless.. Turned out all but 1 had to be rebuilt at $650ea. But here's the kicker! The Australian company wouldn't supply parts as they weren't bought from an "authorised" dealer.. enough said really!

[R31Nismoid]

Well was just a thoughy, Jack has one of the best trader ratings on SAU for a reason

Also just thinking, as you mentioned PPG...

Dollar for effectiveness you'd be better of spending a little more and putting a O/S gearset in, compared with dealing with a stock Nissan item.

A stock box for 3.5k - that is still has all the weaknesses...

Or a O/S set for IIRC ~5.5k.

Seems plenty of people have been having issues with other brands of gearsets... A simple browse in this section will give you an idea of such brands... So going with the tried and proven O/S might be another option to consider for you as you've clearly thought about strength for some reason.

What power/setup is in the car now?

[Duncan]

I am 99% sure Justjap don't have new boxes in stock any more (although feel free to check!), I bought one from them a few years back, but I understood whole new boxes can't be sourced any more. The rebuild I did since then I just put new synchros and bearings in a second hand box, it came up as good as the new one.

[T-Rex]

Well was just a thoughy, Jack has one of the best trader ratings on SAU for a reason

Also just thinking, as you mentioned PPG...

Dollar for effectiveness you'd be better of spending a little more and putting a O/S gearset in, compared with dealing with a stock Nissan item.

A stock box for 3.5k - that is still has all the weaknesses...

Or a O/S set for IIRC ~5.5k.

Seems plenty of people have been having issues with other brands of gearsets... A simple browse in this section will give you an idea of such brands... So going with the tried and proven O/S might be another option to consider for you as you've clearly thought about strength for some reason.

What power/setup is in the car now?

The car has twin 2860-7's producing 330kw at the rears, so basically at its max safe limit. As far as im aware the stock box should cope well enough at that power level? I know how to treat a gearbox well, I had a twin plate clutch in a 5 speed WRX making over 200kw and didn't break it, and they are notoriously weak

Since I have owned the car i have not enjoyed driving it as it has never been trouble free. At this stage all i am looking to do is get it reliable and fun to drive and then modify from there. If future upgrades require a strengthened gearset then i will do it then, but that wont be for a few years.

At the same time i'm doing the gearbox im putting in a new clutch, the OS Giken Street Master caught my eye, do you know anything about them? It seems they are a new offering and there's not much info on them available. They come to $2150 delivered. http://www.rhdjapan.com/os-giken-street-master-clutch-kit-twin-metal-hard-with-converter-kit-64963

[T-Rex]

I am 99% sure Justjap don't have new boxes in stock any more (although feel free to check!), I bought one from them a few years back, but I understood whole new boxes can't be sourced any more. The rebuild I did since then I just put new synchros and bearings in a second hand box, it came up as good as the new one.

Thanks Duncan, I will check with them to see if that's the case.

[R31Nismoid]

The car has twin 2860-7's producing 330kw at the rears, so basically at its max safe limit. As far as im aware the stock box should cope well enough at that power level? I know how to treat a gearbox well, I had a twin plate clutch in a 5 speed WRX making over 200kw and didn't break it, and they are notoriously weak

Since I have owned the car i have not enjoyed driving it as it has never been trouble free. At this stage all i am looking to do is get it reliable and fun to drive and then modify from there. If future upgrades require a strengthened gearset then i will do it then, but that wont be for a few years.

At the same time i'm doing the gearbox im putting in a new clutch, the OS Giken Street Master caught my eye, do you know anything about them? It seems they are a new offering and there's not much info on them available. They come to $2150 delivered. http://www.rhdjapan.com/os-giken-street-master-clutch-kit-twin-metal-hard-with-converter-kit-64963

Ok ye not a box busting setup.

Still... 2nd hand geaxbox i think is still the way to go. New Nissan is horribly expensive

As for the clutch, never heard of that actually.

But if you do want what is IMO the best clutch you can get - Nismo Coppermix Twin, drives like a factory clutch but has held fine with me 7000-7500rpm launches @ 350-380rwkw consistently without fail for 6 months now, it LOVES it.

And the pedal is very light compared to others i've used/had (ORC twin, O/S Racing Twin etc). Only thing that comes close would be a Jim Berry special single plate.

[T-Rex]

Ok ye not a box busting setup.

Still... 2nd hand geaxbox i think is still the way to go. New Nissan is horribly expensive

As for the clutch, never heard of that actually.

But if you do want what is IMO the best clutch you can get - Nismo Coppermix Twin, drives like a factory clutch but has held fine with me 7000-7500rpm launches @ 350-380rwkw consistently without fail for 6 months now, it LOVES it.

And the pedal is very light compared to others i've used/had (ORC twin, O/S Racing Twin etc). Only thing that comes close would be a Jim Berry special single plate.

Thanks, I don't find the new GTR boxes expensive, even the 6 speed Getrag is cheap compared to the Subaru 6 speed. I did think of the Nismo clutch, i think they are about $2800 which is more than i wanted to spend but i will definitely keep it as an option.

[DAN00H]

TRex

you might also want to look at the ATS carbon twin plate http://www.nengun.com/ats/carbon-clutch

that is what i run in mine. as for gearbox, I'd go a S3 R33 GTR box as suggested.