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R33 GTS25T fitting GTR box


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So next week we are undergoing the task of fitting a GTR box to a 25, it’s already been changed to RWD and has a pull to push swap but the best part it has a PPG 1-5 straight cut gear set fitted.

From what we know so far is a new gearbox cross member needs to be made and the drive shaft end changed but wanted to know if there are any other hidden things I need to get before we start 

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2 hours ago, WR33KD said:

So next week we are undergoing the task of fitting a GTR box to a 25, it’s already been changed to RWD and has a pull to push swap but the best part it has a PPG 1-5 straight cut gear set fitted.

From what we know so far is a new gearbox cross member needs to be made and the drive shaft end changed but wanted to know if there are any other hidden things I need to get before we start 

Speedo drive -

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Well I have it, the internal difference between a rb25 and a rb26 is the different length in shaft, it’s not stronger or better if anything it’s worse trying to fit to a gts as the mods are over the top to get that “GTR RWD box”.

Best thing to do is either take them apart and swap them or just get s replacement box for yours.

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Say waht? Was the idea of putting the GTR box in because it was imagined that the GTR box was stronger? That's a fail in logic right there, seeing as they are essentially the same gearbox. The only good reason for the swap has been non-availability of RB25 boxes and availability of cheap GTR boxes. Which is a situation that doesn't always make sense either.

 

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The box I brought was already made to rwd as well as the bonus of having a ppg gearset installed. After killing 4 25boxs it was time to look at other ideas to try and improve gearbox life

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Yeah have to be looking at the right time to snap them up, but from research your need a adaptor plate and drive shaft.
But after all the pain and money wasted on rebuilding 25det boxes enough was enough

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  • 2 weeks later...

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