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RB25 box on to RB20 cef

dangerous_daveo
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dangerous_daveo Grand Master

dangerous_daveo

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This is pretty urgent fellas, front seal is leaking on my semi stuffed rb20 box. So why waste money fixing the weak link, and just replace it with the RB25. Cost wise isnt too bad.

But basically, I can go read all the RB25 boxes in to R32s but it dont mean squat if the cefiro is that much different. So if anyone knows if its the same please let me know asap.

If its no and you know what is needed please list it. If its yes, well shes apples.

Thainks, and once again, this is URGENT.

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https://www.sau.com.au/forums/topic/77955-rb25-box-on-to-rb20-cef/
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dangerous_daveo Grand Master

dangerous_daveo

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why not just use an r32 box!!

Because it broke... And then a new one, will break, and so on and so on. Its basically wasting money. Everything bolts on clutch wise etc, its just cross members and tailshaft.

dangerous_daveo Grand Master

dangerous_daveo

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the 25 box will go in the ceffy behind the rb20, but u will need to sort out

clutch slave cylinder(they is different) and tailshaft(front tailshaft yoke is different and the rb25 box is shorter)

Do you know whats needed with the slave cylinder at all??? Is it as simple as using a RB25 one? Or does the rb20 one need modding? If so what? And yeah, I knew about the tailshaft, thats pretty much a non issue.

dangerous_daveo Grand Master

dangerous_daveo

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yeah u need an rb25 slave cylinder, the mounting holes are different

Ahh ok, cool pretty simple. What about cross member if you know? Im guessing it needs custom anyway, if so, non issue. And Id guess speedo cable is gtr, same as r32 gtst conversions use?

StilledCefiro Enthusiast

StilledCefiro

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speedo cable is a good question, cefiro=manual speedo pickup

rb25 gearbox=digital speedo pickup

so u need to change the speedo sensor in the box to a manual pickup or change your speedo to digital(i did the later cost small fortune), apparently a sensor from a navara is suppossed to fit

  • 3 months later...
dangerous_daveo Grand Master

dangerous_daveo

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Yeah, try not to go for a 1 peice tailshaft tho, its a pain in the neck.

Fits in fine, works good. We just reused my orginal cross member, and moved it back, and added a plate to it or something.

Id doubt you will get on in by saturday tho. Cause you need to cut down the tailshaft etc.

I'll do a proper post tonite.

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