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hi i got a r32 gtst with a rb26 in it and im sik of my shit rb20 box

if i wanna put a rb25 box do ihave to change the tail shaft if so who someone good to do the tail shaft in syd do i use a 33 tail shaft

what else is involved in this conversion is the fly wheels all the same in 20,25,26s

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Whats so shit about the 20 box? They are under rated IMHO.

For the 25 box install, you need a custom tailshaft thats about the length of the 20 shaft but with a 25 yoke to suit the gearbox output shaft. Measure it on the car to be sure you have the lengths right.

You need to muck around with speedo drives and there's a bit of playing around with the crossmember.

There are a fair few threads floating around covering this topic with a fair bit of detail on speedo drive conversions and tailshafts.

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OK cross member depend on what you have in the car at the moment if you go from auto to manuel in an r32 with the rb20 gearbox you need an s13 xmember but from an auto to manuel r33 box you use the auto x member the mounting points are different from auto to manuel .In your case being already an manuel when I did my reseach for my conversion I was told the original manuel one fits well maybe just a little modification. It all depends what your car was b4 the rb26 went in

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If your R32 started life as an auto, apparently theres no need for xmember butchery.

If your R32 started life as a manual then there's no way around it. You have to butcher the std xmember.

Mine chewed third gear. But the box had done 200,000km's odd and had 4years of my slapping of gears. What was scary is I was hardly giving it much when it let go so it can happen any time really.. On a long trip. :S

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