SR20/KA24 Transmission Housing Swap
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- Опубліковано 29 чер 2019
- *More information in description*
In this video, I will be showing you how I like to swap transmission housings between various Nissan transmissions; all thanks to the Nissan engineers for making the FS5W71C so versatile in its application.
🔖Quick list of interchangeability [not comprehensive]:
⚠️Gear ratios differ based on platform and market ⚠️
S13, 180sx, Euro Spec 200sx --CA18DE- 5-speed
S13, 180sx, Euro Spec 200sx --CA18DET- 5-speed
S13, 180sx, S14, S15, Euro Spec 200sx --SR20DE- 5-speed
S13, 180sx, S14 Euro Spec 200sx --SR20DET- 5-speed
89-90 240sx --KA24E- 5-speed
91-94 240sx --KA24DE- 5-speed
95+ 240sx --KA24DE- 5-speed
Bell-housing/Shifter Only [rear case is physically different/smaller]:
D21 Hardbody --KA24E- 5-speed
D22 Frontier --KA24DE- 5-speed
🛁Transmission Cleaning Video: bit.ly/2XzOqlb
🎵Track Info:
Title: It's Cold Out There
Artist: Rymau
SoundCloud: / rymau
Title: Wave Fever
Artist: Neon Summers
SoundCloud: / neonsummers
Title: Reception
Artist: Neon Summers
SoundCloud: / neonsummers - Авто та транспорт
I've just bought a spare S13 box and want to inspect the gears. This video shows me how to remove and replace the covers. I'm very impressed with the imaging, and step by step instructions including torque specs. Can now approach the job with confidence. Many thanks mate!
how did you store your spare transmission? I guess that you use a towel or a bag to cover where the driveshaft goes, but did you store it with fluids? also wanna know if it was stored vertically or horizontally. I got a spare and wanna know if im storing it the right way for when I need it. thanks
@@assinspector1391 I drained it, stored it vertically (output shaft downwards) but on blocks so that the input shaft was not resting on the ground. I have an old yoke that goes into the output end of the box but any cover would do.
@@adow77 thanks for your help bro :D
Thank you for including the torque specs and part numbers for the gaskets and seals. Saved me a lot of time!
You said one thing and I had to leave a comment, like and subscribe. 'After placing the silicone rtv, snug the bolts down and wait an hour before torqueing down'.
Perfect. Proper way to use Silicone
Thanks for your service to the D21 Nissan fraternity. I very much appreciate this tutorial of your experience.
thank's for the info man, I'm putting a KA bellhousing on a CA trans
awesome video! nice work and very helpful. Thanks bunch dude.
Great video mate!
Thanks!
your video helped me out a lot thanks man!!!!
Thank you so much man, I’ve just finish swapping mine as well. Your video saved me a lot of time with torque specs. And detailed demonstrations! Thank you!
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@Emmanuel Kobe Glad I could help xD
awesome video man! your explanation was really really helpful.. keep it up!
Thanks! I really appreciate it.
Dirección
Top quality video on how to do this
Great video, thank you!
Good stuff brother
Great video.
Great information man. I recently bought a SR setup for my Nissan Sunny Truck and everything I’ve read is either cut up the trans tunnel or swap to a 71b stumpy transmission, but I can’t find much information about it.
Thanks!
At minute 9:54, the seal is incorrectly installed. It should be reverse I think
I think the only thing you could have done better is to rebuild the whole thing 😂 .. good job though, amazing video and very thorough !
So I'm fixing to do this exact process.. Have the KA and SR trans already pulled/laid out.. Only thing is the KA trans I picked up from a buddy had the bell housing off for a while and I want to say he even hit the gears/bearings with a little water / cleaner... Do I need to re-grease the ball bearings? or apply some sort of lubricant before sealing it up or are they swimming in enough gear oil etc when filled. This video was the best thing I could of asked for, thank you.
Curious if this would work on the qr25de from a sentra spec-v. I assume so since they use it on the 2005+ frontiers. That helical 6 speed is bullet proof on the sentra, would be nice to use it along with that qr motor on a hardbody, with just swapping out the bellhousing. If you have any insight into this i will worship you as god. *edit* my goal is to rwd swap the qr25 while attempting to keep the trans with the bellhopusing swap. Id assume not since it has cv shafts
Have just removed and then replaced the casing including replacing the bearing seals. Had the phone propped up on the shelf and followed your very clear instructions. Many thanks! I initially thought the box was s13 but it had synchro on reverse and double synchro on the forward gears. Do you have any tips for identifying whether a box is S13 or S14? It's back together now so I can only look at the casing from the outside.
Honestly, I just have to look at them to tell and can't remember off the top. The casings are always a dead giveaway, but the transmission itself I just have to see them.
Hello, we are searching for an adapter plate to mate up to an ISUZU (M 75 ) Transmission. Where can we find the information that can make the application work?
What years can I swap mine has 340 k 96 Nissan hardbody n I need to swap mine soon
I guess I do still have a question after looking at the list. Can the d22 frontier trans internals work in the ka24/sr20 cases?
What the 4x4 d22 ka24de use the transmission and what can I use any transmission for the 4x4 d22 ka engine
Hello Chance , I am wondering if there are any transmission swaps for my Nissan 720 . Originally had the Z24 but I’m swapping it for a Ka24e. Was wondering if you could enlighten me on some option I could have with this swap. Goal is for a more durable transmission because I am trying to have a good amount of horsepower with the Ka24e . Thanks
-Dave
P.S. love the vids, keep up the great work
Howdy! Honestly, the KA transmission is plenty durable up to a certain point. My car [180sx] is making well over 320whp/300ftlbs now, and it has a KA24E transmission inside an SR20DET transmission case. Literally what this video shows me doing. The KA24E transmission I used has about 200,000 miles on it, and I’m pushing that power through it without issue. Remember, torque and shock load is what kills transmissions. If you plan on making more than 350ftlbs of torque and just want to launch for drag racing with a bunch of traction, the KA transmission will be a weak link for sure. It all depends on what you have planned for the truck. People consistently run over 450whp on SR and KA transmissions, but they don’t beat this piss out of it. Drag racing and drifting tends to kill these transmissions pretty quick with higher power levels. Normal street driving use and circuit racing tends to give them a much higher survivability rate with higher power.
TLDR: KA/SR transmissions are strong till about the mid 300’s, then it’s dependent on driving style.
Inner Sanctum
Thank you for fast reply. Yes I plan on drag racing the truck. I’ve heard of people swapping over the 300zx transmission for more durability. Any insight besides fabricating the mount location, transmission tunnel, and shifter location? My goals for the truck is around 400-450 whp.
Here’s my personal take on this; for what it’s worth:
Z32 and R33+ 5-speed gearboxes are damn strong with an excellent synchro-mesh design. The strongest variants are VG30 gearboxes from the Z32 300zx/fairlady and their sister gearboxes in any RB25DET setup from R33-R34 Skylines and so on. I personally like the RB gearbox due to not having a linkage setup like a Z32 gearbox. However, their internals are the same strength wise and overall smoothness.
I feel that they are some of the best 5-speed gearboxes that Nissan has ever made.
With that being said, here’s why I wouldn’t:
1. Sourcing. These gearboxes are getting very expensive and harder to find in good condition which lends to my next point.
2. Age. Aside from just finding them, you have to remember that they are getting quite old, and depending on who has owned them, they have seen a lot of action.
Here’s my recommendation:
If you’re serious about making a strong setup you’d be doing yourself a service by going the CD009 6-speed route out of any 06+ Z33 350z/G35 or even going newer with the JK series and dealing with the internal slave. These transmissions are abundant, affordable, and insanely robust. You also have the added bonus of another gear to get things dialed in better.
The adaption cost is the roughly the same for both routes, and you are not going to have an issue finding a good condition CD009 for “cheap”. Mine was about $600 and it’s from a low mile car. Most good RB and Z32 transmissions are going for twice that with the same mileage and condition. Both routes require a custom driveshaft and mounts as well. The only thing with the CD009 is that it doesn’t have an internal speed sensor, but most just go with the Dakota Digital GPS sender anyways. Easier to wire, manage, and far more accurate.
At the end of the day I like to buy once and cry once. The CD009 is a superior transmission in all respects to its predecessor. The fact that it would end up being cheaper by the end only makes it that much sweeter of a deal.
Hope that helps.
Inner Sanctum thank you I appreciate the information 🙏🏽
Can the cd005 bolt to ka24e
So the bell housing lines up perfectly with a ka24 gearbox? I love it
Yes, the bellhousings are completely interchangeable.
Hello Friend how are you I needed to know which transmission should I use, I have an SR20 that does not have a transmission and here in Chile it is very expensive and I need to know what transmission works for that engine apart from the original to install it in a vehicle with rear-wheel drive greetings from Chile friend excellent project, any information will help bye bye
Shit Out Of Luck
Got a blown SR box and a good KA box. Any way of extending the KA shaft to fit the longer SR case to go in a 180 SX.??? Cheers mate
Also Looking for this answer🙂
Hey, planning on doing an sr20swap and originally wanting to use the sr tranny without swapping like you did. I know I have to get a shorter driveshaft by 2 inches any idea of how to do that?
I’m not sure what setup you have or what vehicle you are referring to swapping. I usually get a Driveshaft Shop custom aluminum driveshaft made for every swap I do. A lot of times I am doing unconventional swaps and need to have them build me a custom one. You can call them and tell them what you have and what you’re trying to do, and they will tell you how and where to measure. Never had an issue.
Do you know if the SR and KA throwout bearings are the same? Some posts on internet forums say they are the same. However, if you check the OEM part numbers, they are different. 30502-69F1A (SR), 30502-21000 (KA)
Yes, the throwout bearings are all the same. They are 100% interchangeable.
OEM numbers are different for a variety of reasons, but the aftermarket replacements are identical. 30502-21000 is the superseding P/N for both.
Here's a Z1 link for further confirmation:
www.z1motorsports.com/trans-case-and-clutch-release/nissan/kasr-throw-out-bearing-p-4798.html?list_name=BundledTogether
Was there no little ball that came out when you removed the 27 mm bolt from the rear extension driver side ? Cause with mine there was but it may have been cause I took of the shifter gasket allowing that one spring to come up witch was retaining it maybe ??? Idk anyone knows what I’m talking about lemme know please. Thanks in advance
Adrian Rodriguez yes, that ball detent is important. The ball goes under the shifter plate spring and holds the one shifter return rod in place. I installed a new ball and spring from Courtesy Nissan when I installed the GKTech shifter and GKTech shifter return springs. You can see it in that install video.
Inner Sanctum thanks a lot, Some really good info !
Can you answer a my question?
Have primera GT 2.0 manual sr20de
I wont to swap transmission for same primera but 1.8 engine and it's fit or no? Thank's
I’m not very familiar with FWD SRs. I’m not sure if that will work or not. Sorry.
Are the input shaft spline count the same? I know the Ka24de has a 24 1"
pablo sibaja yes. The input shaft spline count is exactly the same. I’m running an SR clutch with the KA trans.
Are the internals parts from a 4x4 and the 2 wheel drive transmission the same ????
Good question. I honestly have never opened up a 4x4 unit. I know the bellhousings are interchangeable, but not sure about the internals.
so by switching the casing from the sr trans to the ka internals... i can just mate the sr engine to the ka internals with the sr casing?
If I understood that correctly, then yes. You can use either internals with either casings.
Sorry to bother you with these questions but.... can a vq35 engine bolt up to a ka transmission... if so what kind of modification are involved with this whole process?
Can you do the same swap for a KA24DE FWD to a FWD SR20DE?
This is the same question I am scrolling through to find out🙂
Question: are the Ka24 internals stronger than the stock Silvia box? I’m looking to run about 500hp sr20 and wondering if I should swap the internals to something strong or would I be ok running a stock box
KA24, SR20, CA18, and RB20 transmission internals are all the same strength. Just depends on how well they were taken care of before you get one.
It's not HP that kills the transmission. It's torque, traction, and shock load. If you have a 500hp engine and don't drive hard, it will maybe hold up. However, you will annihilate that transmission in any other form of driving.
@@Inner_Sanctum what box do you recommend for an engine with about 500hp and a average torque figure with that power output, 350z box?
@@lawrenceclaridge6401 rb25det, vg30de/dett, VQ35 CD009 series, or VQ37 JK series are all great options for the 500 range. They can take a lot of abuse and hold a great deal of power.
The CD and JK trans will require that you do not constantly slam into gears without proper clutch timing. Even with the revised synchros in the CD009 and later JK transmissions, the synchros are still subject to damage and can prematurely fail or wear and cause grinding and etc...
The RB25DET 5-speed is just a monster gearbox for what it is. You really have to suck at driving to mess that thing up...
@@Inner_Sanctum you’re a genius, thanks for the help and pointing me in the right direction :)
@@Inner_Sanctum one last question, I’m assuming you need an adaptor plate for the rb25 tot SR20? If so, do you where I could find one? :) sorry to be a pain
Is there a difference between the ka24e and de trans?
Yes. How different depends on what KA24E you’re talking about.
240sx KA24E and 240sx KA24DE transmissions have very minor differences. The vent tube routing and some later DEs have the crank angle sensor port.
D21 KA24E vs 240sx KA24DE are very different. They have different tail shafts and the internals are configured differently to accommodate the shortened stature of the D21 trans.
I would like to add my 2 cents as I really researched and did the same housing swap. It’s not cost effective to try to rebuild the SR transmission and this is a great mod because KA internals are still available in the USA. So if you have a SR it’s best to get a KA trans so you can rebuild it fairly cheap.
Another thing I figured out is after installing the input shaft cover you should pull the input shaft and see if there’s any in/out play, if there is it can effect 4th gear engagement and/or pop out. I found a simple solution to this, just remove the gasket and use RTV. This way the cover holds the input shaft bearing outer race and have a nice crisp solid 4th gear engagement.
can the same thing happen with an rb20det to a ka trans?
Yes
What transmission can I put on my ka24e that can handle 400 to 450 hp
joseph schmier so a few things here:
1. The horsepower number isn’t what kills the trans, it’s the torque and how the transmission is loaded. Shock, due to sufficient traction and gobs of torque, is what generally destroys the gears. Unless you have a really worn out trans that wasn’t taken care of that just breaks during normal operation.
2. Completely depends on what you’re using the vehicle for and how you drive. I’ve owned a few 400hp cars with stock SR/KA transmissions and didn’t have an issue. That said, I have some friends that will destroy any trans they put behind their engine because... reasons.
If you are making 400-450 whp on a KA24E, then you are probably making around 360 ftlbs+ of torque. If you are racing the vehicle hard, I would suggest adapting an RB25DET or VG30 5-speed trans. The CD009 6-speed transmission is a great option as well. I posted a video showing the install. It can be adapted to both SR and KA “easily”.
There are just too many variables to consider when talking about arbitrary HP numbers. Tire size, diff, clutch/pressure plate type, driving style, and sport all play a huge roll.
Example: If you are drifting an S13 and run small wheels and tires, it’s not hard to keep a stock transmission alive around 400hp. It’s when you step up to bigger wheels and tires that it becomes a real problem. If you’re running 255/40r17 with 17x9.5 wheels, you are going to destroy that transmission at some point drifting. The problem becomes even more severe for drag racing. Bigger/stickier tires with a strong clutch will easily find the weakest link in your entire driveline.
Road racing is the most forgiving on the stock trans and what I was primarily doing. I was going through brakes, not transmissions lol.
Hope this helps.
@@Inner_Sanctum this helps alot . Ill primarily be road racing for fun.
Ka24 trans from a d21 or 240 ?
This video is a KA24 trans from a 240sx.
Would ka clutch fit the sr trans?
You'll have to be more specific.
I'm going to assume this is what you mean:
Will an SR trans with a KA bellhousing fit onto a KA with a KA clutch/pressure plate? Yes.
@@Inner_Sanctum yes sorry for the bad wording thanks !
Why do people swap them??
Ozzy Hernandez Sometimes it’s really hard to find a good SR or KA transmission in your area. This comes in handy because you’re able to swap bellhousings in the event you cannot find one. Say you have an SR20 in your car and you go to a drift event. 20 minutes in, you destroy the trans. You get home and start looking around for an SR transmission, but no one has one in the area, or there is one, but the person is asking a lot for it. However, you find that there are plenty of people that have KA transmissions and they are cheap compared to that one SR trans you found. Well, you already have the SR bellhousing from the trans that’s on your car already. So you go and buy a cheap KA trans and swap your SR bellhousing onto it. Problem solved.
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