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RB25 'box into S13?

Cool Hand Luke

By Cool Hand Luke,
in Engines & Forced Induction

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Cool Hand Luke Community Regular

Cool Hand Luke

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After thinking it would be a good idea to boot it coming onto the highway yesterday and my gearbox destroyed itself in a big way, im deciding on which box to choose from. Obviously the 25 box is much stronger and larger, but will it still fit in the standard tunnell of an S13? Anyone who has a whining RB20 gearbox, pay attention to what its trying to say! :) I think the new clutch didnt make it too happy either.... The box is that bad that you cant even let the clutch out in neutral. Also what would be ballpark figure for the 2 boxes?

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Clint32 Mentor

Clint32

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No you need a new tailshaft even from the rb20 box as the yoke is diff in the 33 box. Also the std gearbox mount cant be turned around as its height is different on each side. The gearbox mount is easy and anyone could make in 30mins with the right tools.

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https://www.sau.com.au/forums/topic/23923-rb25-box-into-s13/#findComment-514196
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