What trannys will work with a rb25det?

Discuss the RB20, RB25 and RB26 series engines.
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branmr2
Posts: 85
Joined: Tue Feb 20, 2007 4:24 pm
Car: 91 mr2 na/jdm 3sgte swap/ 95 240 w rb25 swap

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I was looking under the 95 240 w a rb25 swap i bought a couple months ago tryin to figure out which transmission it has on it. I dont believe it is a rb25 transmission cause it dosent have the rb clutch slave on it. What other trannys could it be??? Im not sure what trannys will work with the rb25. If anyone has any good clear pics of some of the trannys it would help me out alot.


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Lroi
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Car: 1990 240sx
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sorry no pics, but...I THINK rb20,ka, & z32 trans can be used...have any pics of yours?

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ZiG
Posts: 836
Joined: Tue Aug 22, 2006 4:01 pm
Car: 1993 240sx coupe

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rwd or 4wd? I believe the KA, SR, CA and RB20 but not 26 will all fit?

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branmr2
Posts: 85
Joined: Tue Feb 20, 2007 4:24 pm
Car: 91 mr2 na/jdm 3sgte swap/ 95 240 w rb25 swap

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No i dont have any pics of mine yet, its still installed and it's kinda hard to get any good pics. Is there some way to identify the different trannys while its in the car? id love to find some pics of different ones!

Joe
Posts: 6511
Joined: Sun Feb 09, 2003 8:29 pm
Location: Phoenix, AZ

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Lroi wrote:sorry no pics, but...I THINK rb20,ka, & z32 trans can be used...have any pics of yours?
wow NO!

RB25 and RB20 trannies are the only direct bolt on easy to install options. the 25 trans is much like a z32 trans, very strong but very expensive, also need a custom driveshaft, the RB20 trans is much like a KA or SR one. weaker, cheaper but no need for custom shaft.

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branmr2
Posts: 85
Joined: Tue Feb 20, 2007 4:24 pm
Car: 91 mr2 na/jdm 3sgte swap/ 95 240 w rb25 swap

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ive searched everywhere! I just cant find any good pics of transmissions. When you pull the shift knob, plate and boot off from inside the car and can see the top of the transmission where the shifter goes down in, is there a way to tell the differance from a rb20 and rb25 transmission???? there has to be something! Is one narrower? what about the plate on top with six bolts, is it different on the two, shaped different or something? what about the mounts, I know that the transmission on my car has a custom mount of some kind, is this normal on rb25's or do they usually bolt directly?? My transmission wont go into 5th for some reason and im just tryin to figure out what im dealing with before i pull it, tryin to have as little down time as possible. Its just aggravating not knowing what kind of contraption someone before you put together. sometimes i wonder if they even know what they were putting together!

l0nestar
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Car: 1993 Nissan 250SX
2004 Toyota Altezza
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... what?

I can take some pics of my 25-DET trans since it is out of the chassis ATM if you would like. I think I may have a pic around of the shifter hole when the engine \ trans was installed.

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branmr2
Posts: 85
Joined: Tue Feb 20, 2007 4:24 pm
Car: 91 mr2 na/jdm 3sgte swap/ 95 240 w rb25 swap

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That would be great! You can just email them to me if you dont want to post them on here, im not sure which is easier. [email protected]

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branmr2
Posts: 85
Joined: Tue Feb 20, 2007 4:24 pm
Car: 91 mr2 na/jdm 3sgte swap/ 95 240 w rb25 swap

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So I got the car on a lift today and the transmission is marked RP71C #2. Does anyone know what its from?? where i can get one??


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