Thinking Of Putting An R34Gtr Box In An R33Gtr.. Good Idea?

[Country Cruzin]

My car now has a stuffed clutch an think there has bn a stuffed synchro on fourth gear for a while so want to get them both fixed at the same time. but the car has done 150,000km an not sure if the gearbox would be worth fixing, or if i should look into putting an r34gtr box in, as they should be a lil newer and ive bn told they are a stronger box then the 33? not sure if thats true or not. currently running bout 460hp atw. But im not sure of the price of a 34 box as i havent seen any for sale, an how much itd cost to make it fit. any thoughts/advice would be appreciated. also are the diff ratio's much the same in a 34 compared to a 33?

[wedge_r34gtr]

r34 gtr diff ratio = 3.545

r33 gtr diff ratio = 4.11

The r34 boxes are much stronger than the earlier gtr boxes (it was mentioned to be me when i had mine rebuilt that they can take 800+hp without modifcation) and usually cost ~$3-5k 2nd hand or ~10k brand new. Like the 33 boxes, these are also starting to get a little old and can have syncho problems if they have had an abusive life.

I'm unsure what modifications are required to make it work with the 33. Nismo make a conversion kit for the 32, which might give you an idea of which parts need changing. However, i beleive the total cost will be alot more then getting a r33 box built with stronger internals.

[Waxhead]

FYI, brand new R33 GTR series 3 gearboxes can be bought for a touch over $3K, I just bought one from Nissan.

Edited January 12, 2013 by Waxhead

[GTR260]

FYI, brand new R33 GTR series 3 gearboxes can be bought for a touch over $3K, I just bought one from Nissan.

Part number?

[Mitchee]

$2899 from JustJap

http://justjap.com/store/product.php?productid=17245&cat=&page=1

[bigmikespec]

My car now has a stuffed clutch an think there has bn a stuffed synchro on fourth gear for a while so want to get them both fixed at the same time. but the car has done 150,000km an not sure if the gearbox would be worth fixing, or if i should look into putting an r34gtr box in, as they should be a lil newer and ive bn told they are a stronger box then the 33? not sure if thats true or not. currently running bout 460hp atw. But im not sure of the price of a 34 box as i havent seen any for sale, an how much itd cost to make it fit. any thoughts/advice would be appreciated. also are the diff ratio's much the same in a 34 compared to a 33?

I thought it was a good idea, I bought all the parts to do but ended up on selling it all. Changed my mind because:

- the Getrag is not as easily rebuilt compared to the simpler R32/R33

- the transfer cases are different from the more common R32/R33

- there are less aftermarket options for gearsets, etc should you need a stronger transmission

[R31Nismoid]

My car now has a stuffed clutch an think there has bn a stuffed synchro on fourth gear for a while so want to get them both fixed at the same time. but the car has done 150,000km an not sure if the gearbox would be worth fixing, or if i should look into putting an r34gtr box in, as they should be a lil newer and ive bn told they are a stronger box then the 33? not sure if thats true or not. currently running bout 460hp atw. But im not sure of the price of a 34 box as i havent seen any for sale, an how much itd cost to make it fit. any thoughts/advice would be appreciated. also are the diff ratio's much the same in a 34 compared to a 33?

460rwhp is a walk in the park for a R33 gearbox in good condition and properly driven/used.

A R34 GETRAG conversion will cost you at a minimum $7,000

2x Diffs - $1000

1x Gearbox - $3500-$5000

Labour (front diff is basically motor out) / oil / misc parts - $1200-$2,000

You can keep your factory diff ratio but that does alter the speedo massively and 1st/2nd also becomes quite short as a result, so for a daily it can be a pain.

[Country Cruzin]

^{Hey thanks heaps for the info =) think i'll look into a new gear box, didnt think they'd be so cheap. =)}

[Piggaz]

Not to mention the new clutch you will need.

[3BEPKA]

FYI, brand new R33 GTR series 3 gearboxes can be bought for a touch over $3K, I just bought one from Nissan.

Looking to get one myself, how quick was delivery?

[Nee-san]

So what's the option for the guys in the 500+ HP bracket who don't want to spend stupid amount of money on a gearbox ?

I'm in the same boat,

Gearbox needs a rebuild,

[Hadouken]

Rebuild with different gears?

[Piggaz]

So what's the option for the guys in the 500+ HP bracket who don't want to spend stupid amount of money on a gearbox ?

I'm in the same boat,

Gearbox needs a rebuild,

OS Gear set. You're going to be putting new synchro's, bearings and stuff in it anyway. I got my 5 speed set with the big input shaft delivered for $2,760. You'd also be stupid not to put the billet centre plate which is another $900 or so.

It really isn't that bad especially if you take but the money you're already going to spend refreshing the box anyway.

[R31Nismoid]

So what's the option for the guys in the 500+ HP bracket who don't want to spend stupid amount of money on a gearbox ?

I'm in the same boat,

Gearbox needs a rebuild,

Mine held fine @ 550-600HP, 8200rpm launches constantly for 18 months.

Might be worth the gamble just to get a 2nd hand one given they are about $800. Gearboxes failing is also dependant on the clutch. The Nismo Coppermix is very forgiving for a gearbox due to its construction and the clamp/pressure etc. Where say a nastier OS clutch isn't and will stress components a lot more.

You tend not to hear many people busting boxes that use Coppermix clutches as a result which is something a lot of people don't take into account

[Piggaz]

It's not really 1st that breaks though Ash. It's almost always 3rd that gives up.

One thing I'd like to see is a standard box but with the billet plate put in. It might be the solution to the issue without mega expense (especially if you're getting it freshened up anyway).

[R31Nismoid]

Indeed it's usually 3rd that does get stripped, it is a smaller gear etc so it makes sense.

Still clutches I think do play a solid part. I know someone that busted a OS box & a stock (without a Nismo), and then went back to a stock box with a Nismo and it was fine.

One example is far from truth but overall rarely hear a Nismo copper owner busting a box.

[Hadouken]

What you do hear a lot of is jimberry clutches smashing boxes

[Nee-san]

Where did you get the OS gear from Paul ? I may just get a second hand box and drop it in until such time as I break it. Then rebuild with the OS gear.

Going to get my OS twin rebuilt at NPC.

[Piggaz]

Greenline mate. Paid straight into their account and ot arrived 4 or 5 days later. Don't forget the centre plate either!!!! Gav from WA has smashed two OS sets and countless standard boxes. Funny enough, no centre plate and a JB clutch. He spoke to OS in Japan mad the first question they asked was if he had the standard plate.

[Piggaz]

You will also need all the Series 3 33 gtr parts if it's an early box. Pm me for the list of part numbers. There is about 11 parts all up I think.