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New Gtr Gearbox Selection

slw32
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slw32 Enthusiast

slw32

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Posted

Hey Guys!

Ive got an r32 gtr with 340hp atw but im just in the process of putting on new turbos, computer, inj, ect, and am hoping for a fair bit more power. Problem is that my gearbox at the moment is on its way out (crunches a bit between 1st and 2nd and is generally a little clunky) with the extra power i dont think it will last to long. I was wondering if anyone could give me some advice as to what to do about the box? do i rebuild it or am i better of looking for a new one and if so what type? it gets taken to the strip a little but is generally a daily driver. Any help would be appreciated!

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https://www.sau.com.au/forums/topic/130605-new-gtr-gearbox-selection/
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N1GTR Grand Master

N1GTR

Posted
Posted
When i looked into this, i found the best way to do it, and the cheapest, was to buy an OS Giken 5 speed gear set and buy new synchros aswell, fit it all back up and hey presto, unbreakable :D

What sort of price are we talking here?

shanef Grand Master

shanef

Posted
Posted

Yes you can bolt the 33 box straight up, but if you bolt it up to a pre 93 model 32 gtr, you will have to convert the clutch from push to pull, as the 33 boxes are a pull type clutch. Also I don’t believe the 33 box is any stronger than that of the 32 box, as many people on here have stated.

KrayzieGTR Contributor

KrayzieGTR

Posted
Posted

Does anyone know if its possible to swap the bell housing from a R33 GTR box with a 90' 32 GTR housing?!

I have a hyper twin carbon exedy clutch pull type but my 32 is push type. My options are either a bell housing swap or a straight gearbox swap.

Any ideas?!

Cheers

benm Grand Master

benm

Posted
Posted

I'm in a similar situation Krayzie. My bellhousing has smashed but rest of gearbox appears ok. Not sure whether to just replace entire box with an r33 gtr box or hunt around for a housing with the clutch fork and everything.

Duncan Grand Master

Duncan

Posted
Posted

guys you can convert a pull type housing to push pretty easily, you just need the fork and pivot from the push box, and tap the location on the bellhousing for the slave cylinder bolts.

I saw the pic of yours ben....nasty....how did that happen? dropped off the crane or stand?

The internals of the 32 and 33 gearboxes are the same, except for the synchros on the 33 series 3 boxes which are much better....have lasted us a couple of years instead of a couple of months the 32 ones lasted each time :happy:

Beer Baron Grand Master

Beer Baron

Posted
Posted
Does anyone know if its possible to swap the bell housing from a R33 GTR box with a 90' 32 GTR housing?!

I have a hyper twin carbon exedy clutch pull type but my 32 is push type. My options are either a bell housing swap or a straight gearbox swap.

Any ideas?!

Cheers

why not just buy a push type clutch, to match your push type car?

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