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hey guys, a silly question but need help. Thinkin of going a 3L bottom end and have a spare r33 gts4 gearbox. Form what i can gather they are the same strenght as a GTR box but different ratio. Now my question is, can i use it on a RB30 and what tailshaft/diff would i need ? Or just stick with the normal gtst box ?

Any help is appreciated

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What car? I'm assuming is a RWD platform as you talk about re-using your gtst gearbox...

If it's an R32 GTSt, I killed my stock box very quickly after chucking the 3L in.

If it's an R33 GTSt, then your box is already as strong as a GTR box as they are pretty much the same internals (I upgraded to an RB25DET box, including the box and custom tailshaft good for 800Nm, and some other bits like slave cylinders, pivot ball etc, cost me nearly $2.5k and I did the work myself).

Using a 4WD gearbox in a RWD application requires some cutting and shutting.. easier to use an R33 RB25DET box.

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What car? I'm assuming is a RWD platform as you talk about re-using your gtst gearbox...

If it's an R32 GTSt, I killed my stock box very quickly after chucking the 3L in.

If it's an R33 GTSt, then your box is already as strong as a GTR box as they are pretty much the same internals (I upgraded to an RB25DET box, including the box and custom tailshaft good for 800Nm, and some other bits like slave cylinders, pivot ball etc, cost me nearly $2.5k and I did the work myself).

Using a 4WD gearbox in a RWD application requires some cutting and shutting.. easier to use an R33 RB25DET box.

will be rwd 33 and i have a spare gts4 which im stripping. need to know if i should keep the gbox or sell it. dont have a 33gtst box though. i would just use that...like u said.

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  • 2 weeks later...

the trouble there is r33 gts4's are pretty rare, and the demand for that gbox wouldn't be strong. even gtr boxes are cheap as chips so i wouldnt expect much for that one. it probably isn't expensive to have the transfer case removed and sealed off so i'd seriously look at that, given that its got the same internals as the 2wd turbo box anyway so you'd have a good gearbox for little expense.

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  • 1 year later...

I have a stock R33 gtst gear box, Will strip it out for the right price. pm me if your intrested mate-

No one has ever confirmed the stenght of internals - Im planning to run 300+ kw through mine- Been N/A up untill now.

A few people on here have put plenty of poke through them with no worries, depends how you treat it though- 8k dumps and smashing gears isent goign to be good for any stock box.

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