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How To Tell If U Have A Rb25 Or Rb20 Manual Gearbox


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12 replies to this topic
  • Car(s):R32 RB25
  • Real Name:Dan
Hey all

I've got a r32 with a rb25det neo and its used for driftin
Not sure what gearbox is atteched but it has taken a beating and has finally failed
I've got some numbers of it RP71C #1 if that helps

Can someone help me to tell the difference between the 2 gearboxes

Cheers
Daniel

Posted 10 September 2009 - 01:03 PM


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  • Location:Brisbane
  • Car(s):Cefiro
  • Real Name:Luke
Just look on google images. The difference in shape between the 2 boxes is quite noticable.

Posted 10 September 2009 - 01:27 PM


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  • Car(s):R33 GTS-T, Yamaha R1
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Judging by the writing on the side that sounds like an RB20DET gearbox to me.

The most noticeable difference is in the size of the thing, but yeah, google images.

Posted 10 September 2009 - 02:58 PM

merchandise@sauvic.com.au newsletter@sauvic.com.au

 

yeah i understand but i honestly dont consider the turbo to be a critical component in the car

 

  • Gender:Male
  • Car(s):Fiat 500
  • Real Name:Daniel
Look at the slave cylinder.

If the slave cylinder is on the engine side of the throwout fork, then it is RB20 or R33 RB25. Then check where the bolts are. Bolts for slave cylinder on same side of slave cylinder is RB25 gearbox, bolts on opposite sides from each other on the slave cylinder is RB20. If the slave cylinder pushes from the rear of the box forward, then it's the Neo RB25 box and you have the pull type clutch

Posted 10 September 2009 - 09:26 PM

SELLING ALL MY STUFF:

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HOIST FOR SALE:

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This is a SINGLE PHASE hoist (Runs on 240v standard outlet) and is the American made version of this hoist. All current models are made in China.

 

 


  • Gender:Male
  • Location:Wellington, NZ
RB20


RB25

RB25 box is much bigger..


Sam

Posted 11 September 2009 - 12:34 AM

Posted Image

  • Car(s):R32 RB25
  • Real Name:Dan
Thanks heaps for that info guys:)

i'll jack the car up tomorow and check it out

Cheers

Posted 11 September 2009 - 08:09 PM


  • Gender:Male
  • Location:Perth, where the whales frolic
  • Car(s):R33 Series2
  • Real Name:Jase
Yes RP71 (whatever) indicates non turbo rb20/rb25 box. RB25det box is a good 20kgs heavier and wider.
Posted Image

Edited by R31 POWER, 11 September 2009 - 09:03 PM.

Posted 11 September 2009 - 09:01 PM

HKS GT2835 Pro S Powered.

  • Gender:Male
  • Location:Bne
  • Car(s):Rb25 R32 Coupe
  • Real Name:Dave


like he said, shear size difference and weight. lol

Posted 11 September 2009 - 09:19 PM


  • Car(s):R32 RB25
  • Real Name:Dan

Yes RP71 (whatever) indicates non turbo rb20/rb25 box. RB25det box is a good 20kgs heavier and wider.
Posted Image


Cheers man thats heaps of difference i deff got a pissy gearbox:(

Edited by fubar, 11 September 2009 - 11:38 PM.

Posted 11 September 2009 - 11:36 PM


  • Location:Townsville
  • Car(s):'99 R34 GT-V sedan
  • Real Name:Reggie
yes i know i'm posting in a year old thread, let it be.....
had my car on a hoist yesterday to check a couple of things and discovered my g/box has a little kangaroo stamped under the RP71C #1 code.
is this a common thing for these g/boxes?

Posted 01 August 2010 - 09:53 AM


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VL gearbox?

Posted 01 August 2010 - 04:04 PM

merchandise@sauvic.com.au newsletter@sauvic.com.au

 

yeah i understand but i honestly dont consider the turbo to be a critical component in the car

 

  • Gender:Male
  • Location:Gold Coast
  • Car(s):RB26 S13
  • Real Name:Bryn
wouldent think so... i have seen a few sr20 main cap gurdle's with a kangaroo stamped on it .....

Posted 01 August 2010 - 05:03 PM


  • Location:Townsville
  • Car(s):'99 R34 GT-V sedan
  • Real Name:Reggie
i just found it really strange for a jdm car to have such a thing stamped on the casing.
unless the box was changed at compliance? far fetched, i know.

Posted 06 August 2010 - 04:42 PM





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