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View Full Version : RB25DET transmission options


xchaosx
12-31-2014, 01:55 PM
Hey everyone, i'm looking for something to use in place of the 25 transmission, as i've completed a swap but the transmission has seen better days. I've already had a driveshaft made and for the most part everything is where I need it to be, so it woudl be great to find something that physically works without changing other stuff. I would prefer to find some sort of US available part, as importers tend to want a considerable amount for them and a rebuild looks more involved than i'd like to get into right now.
I'm not really interested in using a 71c.



Those things aside, I've been finding a lot of mixed and unconfirmed information around and would like to see if anyone has actually used certain parts.

Can anyone fill in the gaps?


Kouki z31 turbo
I've read this one works with the swap of the 25 bellhousing. The shifter is in the correct position, physically the same lenth, and has the 30a guts. These seem to be hard to find locally.

Pathfinder 2wd (not sure what year)
I'm unsure what exact years and trims this came in, but this transmission has the 30a guts and has a different gear ratio, but i'm unsure what the physical lengths are for this thing. It looks like the shifter is upright as well. If the gearing is tolerable, i'd like to see if this would just pop in, as theyre more widely available.

Z32 na/turbo
This one is a little different in that it's still a 30a but physically longer? when bolted up to the 25 bellhousing, so a new driveshaft would be necessary. From what i've read, there are some internal differences that would make this physically different to work with from the 25 transmission. The shift lever is also remote to the transmission, so that's another thing. These are pretty available but sound like would take some more parts to make work in an already defined setup.


thanks in advance!