RB25 trans on RB20 help.

Discuss the RB20, RB25 and RB26 series engines.
Duke89
Posts: 29
Joined: Thu Oct 07, 2010 8:33 pm
Car: 11/88 cream yellow/gray two tone RB20 project

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ok iv been searching and cant find anything on this topic ( might mention my search skills suck but thats beside the point lol ). i bought this rb20 swap late last year and it has been nothing but a nightmare and im determined to get it running as im saving a creamy yellow two tone coupe. but the trans i got from the guy is fubared and everywhere i look people want 400+ shipping for a rb20 trans and im not going to pay that much for something that ill end up breaking later down the road. so my question is can i get a 25 trans and put the 20 bell housing on it or and i going to need an adapter plate and what clutch and fly wheel will i need to use 20 or 25.

any help will be much appreciated. thanks
Last edited by Duke89 on Mon Jul 09, 2012 9:03 am, edited 1 time in total.


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Carl H
Posts: 5985
Joined: Mon Aug 04, 2003 4:09 am
Car: 1995 Nissan 240SX SE RB30DET

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just bolt it up and go.
or have a local rebuilder rebuild the 20 trans...they hold up if you know how to drive.
my 20 trans has held up behind the 30 for 2.5 years now.

Duke89
Posts: 29
Joined: Thu Oct 07, 2010 8:33 pm
Car: 11/88 cream yellow/gray two tone RB20 project

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dont even have to swap bell housings? and i would'nt mind having it rebuilt but the the out put shaft is twisted about half way and i can't get the DS all the way in the trans on top of it would go into 1st 3rd or 5th gear

Duke89
Posts: 29
Joined: Thu Oct 07, 2010 8:33 pm
Car: 11/88 cream yellow/gray two tone RB20 project

Post

Thanks for the help finaly found a decent deal on a rb20 trans with only 11k on it :)


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