# RB & KA Clutches **URL:** \ **Category:** SON240sx Automotive\ **Created:** [October 10, 2009, 10:40am UTC](https://forums.speedlife.net/t/rb-ka-clutches/128694 "2009-10-10T10:40:36Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![nitescream](https://avatars.discourse-cdn.com/v4/letter/n/8797f3/32.png) [@nitescream](https://forums.speedlife.net/u/nitescream)\ **Post date:** [October 10, 2009, 10:40am UTC](https://forums.speedlife.net/t/rb-ka-clutches/128694/1 "2009-10-10T10:40:36Z")
I need to know if the KA clutch is FULLY compatible with the RB motor!! So when I go to Varun to get my clutch i have no issues! Help a brother out!!.. i am 70% sure, i need it to be 100% ---
**Author:** ![Specialedition](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/specialedition/32/5714_2.png) [@Specialedition](https://forums.speedlife.net/u/Specialedition)\ **Post date:** [October 10, 2009, 10:43am UTC](https://forums.speedlife.net/t/rb-ka-clutches/128694/2 "2009-10-10T10:43:11Z")
i know 100% the 300zx N/A is fully compatible you just need to a flywheel from a rb motor if you decide to change flywheels. The KA im not sure ---
**Author:** ![nitescream](https://avatars.discourse-cdn.com/v4/letter/n/8797f3/32.png) [@nitescream](https://forums.speedlife.net/u/nitescream)\ **Post date:** [October 10, 2009, 10:50am UTC](https://forums.speedlife.net/t/rb-ka-clutches/128694/3 "2009-10-10T10:50:33Z")
I am going with a RB20 in my car for lapping next year. so i am going with a Stage 3 clutch for all the abuse it will need to handle ---
**Author:** ![87s15lt1](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/87s15lt1/32/5706_2.png) [@87s15lt1](https://forums.speedlife.net/u/87s15lt1)\ **Post date:** [October 10, 2009, 1:35pm UTC](https://forums.speedlife.net/t/rb-ka-clutches/128694/4 "2009-10-10T13:35:01Z")
Z32 NA. Off the top of my head the difference between the NA Z32 and TT is 5mm on disc diameter. I used Z32 NA. No problems at all KA. If you can get disc diameters…you should be fine. The splines are the same. ---
**Author:** ![Slide\_Junkie](https://avatars.discourse-cdn.com/v4/letter/s/74df32/32.png) [@Slide\_Junkie](https://forums.speedlife.net/u/Slide_Junkie)\ **Post date:** [October 10, 2009, 2:40pm UTC](https://forums.speedlife.net/t/rb-ka-clutches/128694/5 "2009-10-10T14:40:27Z")
or just go to [enjukuracing.com](http://enjukuracing.com) and get a rb clutch… act stage 3 for 300 bucks ---
**Author:** ![nitescream](https://avatars.discourse-cdn.com/v4/letter/n/8797f3/32.png) [@nitescream](https://forums.speedlife.net/u/nitescream)\ **Post date:** [October 11, 2009, 5:34am UTC](https://forums.speedlife.net/t/rb-ka-clutches/128694/6 "2009-10-11T05:34:37Z")
^ you da man! thanks for the website!! ---
**Author:** ![simplemind7](https://avatars.discourse-cdn.com/v4/letter/s/0ea827/32.png) [@simplemind7](https://forums.speedlife.net/u/simplemind7)\ **Post date:** [October 11, 2009, 4:57pm UTC](https://forums.speedlife.net/t/rb-ka-clutches/128694/7 "2009-10-11T16:57:28Z")
It can be used. I had a KA flywheel and clutch in my old RB car. I’m not positive if the pressure plate has the same bolt pattern to the flywheel or not as I used the whole setup from the KA. The KA is a significantly smaller diameter, I don’t have measurements though. ---
**Author:** ![IRo](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/iro/32/5564_2.png) [@IRo](https://forums.speedlife.net/u/IRo)\ **Post date:** [October 12, 2009, 9:53pm UTC](https://forums.speedlife.net/t/rb-ka-clutches/128694/8 "2009-10-12T21:53:48Z")
How does ur civic fit a skyline anything… But seriously though, what r u getting man! s13 rb20? ---
**Author:** ![nitescream](https://avatars.discourse-cdn.com/v4/letter/n/8797f3/32.png) [@nitescream](https://forums.speedlife.net/u/nitescream)\ **Post date:** [October 12, 2009, 9:55pm UTC](https://forums.speedlife.net/t/rb-ka-clutches/128694/9 "2009-10-12T21:55:12Z")
^^^ yup then I am going to sell or trade it… as long as i get my Skyline!! it will be my DD and lapping car… so it will be done proper!! 🙂