RB tranny on a KA motor? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

TheEnd510 · 05-22-2011, 10:31 PM

Is it possible to fit a tranny off of a RB20det onto a KA24e motor? Swap bell housing maybe? Thanks for the help.

s14fbs · 05-22-2011, 10:38 PM

Quote:

Originally Posted by TheEnd510

Is it possible to fit a tranny off of a RB20det onto a KA24e motor? Swap bell housing maybe? Thanks for the help.

why would you rb20 tranny are weak as hell there pretty the same thing it would be a waste of money but yes and they just bolt right up

now a rb25 tranny is the way to go and it will also bolt up along with a matching rb clutch so u can run a sweet twinplate and have a real cool smooth shifting tranny if you have a high hp ka-t setup

TheEnd510 · 05-22-2011, 10:41 PM

Quote:

Originally Posted by s14fbs

why would you rb20 tranny are weak as hell there pretty the same thing it would be a waste of money but yes and they just bolt right up

now a rb25 tranny is the way to go and it will also bolt up along with a matching rb clutch so u can run a sweet twinplate and have a real cool smooth shifting tranny if you have a high hp ka-t setup

I just bought a 90 hatch. Tranny is shitty so I just wanted a tranny to make it run until I do a full motor and tranny swap. So will it bolt right up with the same bell housing? I have the bell housing I took off the stock 5 sp tranny.

Carbomb · 05-22-2011, 10:42 PM

swap bell housings from ka trans to good rb trnas n go

iamtheyi · 05-22-2011, 10:59 PM

how is the tranny shitty? did you change the fluid and clutch yet? or are you just saying that with all the dirty shit in there from just buying it?

TheEnd510 · 05-22-2011, 11:03 PM

Quote:

Originally Posted by iamtheyi

how is the tranny shitty? did you change the fluid and clutch yet? or are you just saying that with all the dirty shit in there from just buying it?

Tranny is stuck in reverse. Something grinded the shit out of the wall inside the tranny. I dunno how to rebuild and having someone rebuild it is way to expensive.

Now my second question is. Will a shifter from the KA tranny fit into the RB tranny?

future · 05-22-2011, 11:03 PM

You gotta also have to remember you will need a new a driveshaft for the trans. But rb25 trans on ka? Works? That's good to know

s14fbs · 05-23-2011, 12:59 AM

Quote:

Originally Posted by future

You gotta also have to remember you will need a new a driveshaft for the trans. But rb25 trans on ka? Works? That's good to know

yeah u would need a drive shaft and tranny mount

but yeah the rb trans will bolt up to the ka trans like 3-4 bolts line up to the motor to bolt up

i only know cause a friend is doing a rb trans with a twinplate on his high power ka-t

and ka24de and ka24e use the same block so that would not be a issue either

justin240s14 · 04-24-2015, 06:24 AM

I realize that this post is from 2011 .....I just had a question myself why would you nees to change the drive shaft and another mount if the rb20 and ka trans is pretty much the same ?
Thx in advance!

Skellis14 · 05-31-2015, 08:54 PM

What size are the 4 bolts for Rb20det s13 swap the bolts on the bottoms of the mounts to the front cross member?

supersayianjim · 03-13-2019, 01:39 PM

bump from the dead, can someone confirm the rb25 tranny will bolt upto the ka?

*2_Liter_Turbo* · 03-13-2019, 01:57 PM

The RB25 transmission does not bolt up to the KA, you would have to make an adapter plate like you would a VG30 Transmission, custom shifter, custom crossmember, etc etc. This thread is super old BTW...

05-22-2011, 10:31 PM	#1
TheEnd510 Join Date: May 2011 Location: Hayward, Ca Age: 36 Posts: 5 Trader Rating: (0) Feedback Score: 0 reviews	RB tranny on a KA motor? Is it possible to fit a tranny off of a RB20det onto a KA24e motor? Swap bell housing maybe? Thanks for the help.

05-22-2011, 10:59 PM	#5
iamtheyi Nissanaholic! Join Date: Mar 2008 Location: Brea, CA Age: 30 Posts: 2,252 Trader Rating: (21) Feedback Score: 21 reviews	how is the tranny shitty? did you change the fluid and clutch yet? or are you just saying that with all the dirty shit in there from just buying it? __________________

03-13-2019, 01:39 PM	#11
supersayianjim Nissanaholic! Join Date: Jan 2010 Location: location X Posts: 1,807 Trader Rating: (10) Feedback Score: 10 reviews	bump from the dead, can someone confirm the rb25 tranny will bolt upto the ka? __________________ http://www.240sxforums.com/forums/rb...ject-s-rb.html

03-13-2019, 01:57 PM	#12
2_Liter_Turbo Premium Member Join Date: Mar 2005 Location: Arizona Age: 37 Posts: 798 Trader Rating: (28) Feedback Score: 28 reviews	The RB25 transmission does not bolt up to the KA, you would have to make an adapter plate like you would a VG30 Transmission, custom shifter, custom crossmember, etc etc. This thread is super old BTW... __________________ 96 S14: Grip Track Car 90 R32: Bucket List Car 92 S13: Just for Fun Car Instagram: @SS.Maxey

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05-22-2011, 10:42 PM	#4
Carbomb Zilvia Junkie Join Date: Apr 2009 Location: USA Age: 33 Posts: 318 Trader Rating: (6) Feedback Score: 6 reviews	swap bell housings from ka trans to good rb trnas n go

05-22-2011, 11:03 PM	#7
future Post Whore! Join Date: Dec 2010 Location: SoCal 909 Age: 28 Posts: 4,737 Trader Rating: (42) Feedback Score: 42 reviews	You gotta also have to remember you will need a new a driveshaft for the trans. But rb25 trans on ka? Works? That's good to know

04-24-2015, 06:24 AM	#9
justin240s14 Join Date: Mar 2015 Location: Mississippi Age: 38 Posts: 29 Trader Rating: (0) Feedback Score: 0 reviews	I realize that this post is from 2011 .....I just had a question myself why would you nees to change the drive shaft and another mount if the rb20 and ka trans is pretty much the same ? Thx in advance!

05-31-2015, 08:54 PM	#10
Skellis14 Join Date: Apr 2014 Location: Florida Age: 31 Posts: 32 Trader Rating: (0) Feedback Score: 0 reviews	What size are the 4 bolts for Rb20det s13 swap the bolts on the bottoms of the mounts to the front cross member?