RB25 Transmission Rebuild - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

avarda67 · 11-25-2014, 07:06 PM

I was rebuilding my motor over the winter when I figured I should also rebuild the trans because its super skiddish between gears. The trans doesnt shift into any gear smoothly. Ive been working with the google machine trying to find synchros for my trans but couldnt find anything. People have been telling me to just buy a replacement trans but its expensive and there is a chance that it might have the same problem. I have a S2 rb25 so any help would be appreciated.

TurboSE · 11-26-2014, 02:57 AM

Doesn't the Z32 Trans have the same internals?

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Sforteen · 11-26-2014, 07:29 AM

There is alot of things that can cause your issues, you need to pull it apart and investigate.. i have rebuilt the rb25 trans.. it's not very easy to do.. it requires multiple pullers and a press to take apart.. my synchros were actually in decent shape. It was the insert springs that were missing and beat up.. i also replaced all the bearings..

I used a kit off eBay that was made for a Z32. You can get the insert springs directly from nissan.

rastaman · 11-26-2014, 04:15 PM

Quote:

Originally Posted by Sforteen

There is alot of things that can cause your issues, you need to pull it apart and investigate.. i have rebuilt the rb25 trans.. it's not very easy to do.. it requires multiple pullers and a press to take apart.. my synchros were actually in decent shape. It was the insert springs that were missing and beat up.. i also replaced all the bearings..

I used a kit off eBay that was made for a Z32. You can get the insert springs directly from nissan.

Do you have the part # for the insert spring?

supersayianjim · 11-27-2014, 07:17 AM

^^iam with him you have a link also?

avarda67 · 11-27-2014, 08:20 AM

Good call Sforteen, I also came across a skyline thread talking about synchro clips breaking and falling off, Sforteen do you know if the z32 kit comes with these? This is the link with the synchro clip info http://www.sau.com.au/forums/topic/2...into-4th-gear/.

Sforteen · 11-27-2014, 10:53 AM

The kit doesn't come with them, read what I posted. You can get them directly from nissan, you will need at least 3, 5th gear uses them as well might as well replace those too.

avarda67 · 11-27-2014, 11:23 AM

Would you guys know which of these it would be? http://www.sau.com.au/forums/uploads...1254878084.jpg

Sforteen · 11-27-2014, 11:54 AM

32609-40p00

sil_fourty · 11-27-2014, 12:34 PM

I rebuilt my ka trans, which is basically the same. It is not difficult. Just find your procedures on alldata or direct hit. If you rebuilt your engine, the trans will be a breeze.

rastaman · 11-27-2014, 09:40 PM

how many of these 32609-40p00 do i need 5 ? one for each gear?

avarda67 · 11-27-2014, 10:03 PM

Im not seeing this 32609-40p00 and i've been staring at this picture for an hour

Scott@FontanaNissan · 11-28-2014, 10:09 AM

it's a long shot, but if anyone is interesed I have a couple RB25 transmissions that can be had under 2K these are brand new Nissan Units, not remanufactured or reconditioned. but brand new transmissions if anyone is interested.

other than that yes both the Z32 and R33 RB25 transmissions share the same rebuild kits.

-Juan

rastaman · 12-01-2014, 07:52 PM

Can someone tell me how many of these 32609-40p00 do I need? please

11-25-2014, 07:06 PM	#1
avarda67 Join Date: Jun 2014 Location: Chicago Posts: 27 Trader Rating: (1) Feedback Score: 1 reviews	RB25 Transmission Rebuild I was rebuilding my motor over the winter when I figured I should also rebuild the trans because its super skiddish between gears. The trans doesnt shift into any gear smoothly. Ive been working with the google machine trying to find synchros for my trans but couldnt find anything. People have been telling me to just buy a replacement trans but its expensive and there is a chance that it might have the same problem. I have a S2 rb25 so any help would be appreciated.

11-26-2014, 02:57 AM	#2
TurboSE Zilvia Addict Join Date: Sep 2005 Location: Hanover Pa Posts: 740 Trader Rating: (15) Feedback Score: 15 reviews	Doesn't the Z32 Trans have the same internals? Sent from my EVO using Tapatalk 2 __________________ WTB: PAIR 18x10 0 to -25, less than $1500 shipped please.

11-27-2014, 07:17 AM	#5
supersayianjim Nissanaholic! Join Date: Jan 2010 Location: location X Posts: 1,815 Trader Rating: (10) Feedback Score: 10 reviews	^^iam with him you have a link also? __________________ http://www.240sxforums.com/forums/rb...ject-s-rb.html

11-28-2014, 10:09 AM	#13
Scott@FontanaNissan Zilvia Junkie Join Date: Dec 2009 Location: Fontana, CA Posts: 479 Trader Rating: (4) Feedback Score: 4 reviews	it's a long shot, but if anyone is interesed I have a couple RB25 transmissions that can be had under 2K these are brand new Nissan Units, not remanufactured or reconditioned. but brand new transmissions if anyone is interested. other than that yes both the Z32 and R33 RB25 transmissions share the same rebuild kits. -Juan __________________ Juan Vargas - Motorsports Specialist Fontana Nissan/Nissanraceshop.com email: [email protected] Scott's Personal Website/Blog: http://www.scottandkerryann.com

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11-26-2014, 07:29 AM	#3
Sforteen Zilvia Junkie Join Date: Nov 2010 Location: USA Posts: 333 Trader Rating: (0) Feedback Score: 0 reviews	There is alot of things that can cause your issues, you need to pull it apart and investigate.. i have rebuilt the rb25 trans.. it's not very easy to do.. it requires multiple pullers and a press to take apart.. my synchros were actually in decent shape. It was the insert springs that were missing and beat up.. i also replaced all the bearings.. I used a kit off eBay that was made for a Z32. You can get the insert springs directly from nissan.

11-27-2014, 08:20 AM	#6
avarda67 Join Date: Jun 2014 Location: Chicago Posts: 27 Trader Rating: (1) Feedback Score: 1 reviews	Good call Sforteen, I also came across a skyline thread talking about synchro clips breaking and falling off, Sforteen do you know if the z32 kit comes with these? This is the link with the synchro clip info http://www.sau.com.au/forums/topic/2...into-4th-gear/.

11-27-2014, 10:53 AM	#7
Sforteen Zilvia Junkie Join Date: Nov 2010 Location: USA Posts: 333 Trader Rating: (0) Feedback Score: 0 reviews	The kit doesn't come with them, read what I posted. You can get them directly from nissan, you will need at least 3, 5th gear uses them as well might as well replace those too.

11-27-2014, 11:23 AM	#8
avarda67 Join Date: Jun 2014 Location: Chicago Posts: 27 Trader Rating: (1) Feedback Score: 1 reviews	Would you guys know which of these it would be? http://www.sau.com.au/forums/uploads...1254878084.jpg

11-27-2014, 11:54 AM	#9
Sforteen Zilvia Junkie Join Date: Nov 2010 Location: USA Posts: 333 Trader Rating: (0) Feedback Score: 0 reviews	32609-40p00

11-27-2014, 12:34 PM	#10
sil_fourty Join Date: Nov 2007 Location: Central Oklahoma Posts: 25 Trader Rating: (0) Feedback Score: 0 reviews	I rebuilt my ka trans, which is basically the same. It is not difficult. Just find your procedures on alldata or direct hit. If you rebuilt your engine, the trans will be a breeze.

11-27-2014, 09:40 PM	#11
rastaman Zilvia Addict Join Date: Apr 2009 Location: Fl. Posts: 708 Trader Rating: (1) Feedback Score: 1 reviews	how many of these 32609-40p00 do i need 5 ? one for each gear?

11-27-2014, 10:03 PM	#12
avarda67 Join Date: Jun 2014 Location: Chicago Posts: 27 Trader Rating: (1) Feedback Score: 1 reviews	Im not seeing this 32609-40p00 and i've been staring at this picture for an hour

12-01-2014, 07:52 PM	#14
rastaman Zilvia Addict Join Date: Apr 2009 Location: Fl. Posts: 708 Trader Rating: (1) Feedback Score: 1 reviews	Can someone tell me how many of these 32609-40p00 do I need? please