# Tranny for S13

**URL:** <https://forums.speedlife.net/t/tranny-for-s13/100048>\
**Category:** SON240sx Automotive\
**Created:** [September 19, 2006, 10:43pm UTC](https://forums.speedlife.net/t/tranny-for-s13/100048 "2006-09-19T22:43:29Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Polar\_s13](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/polar_s13/32/5572_2.png) [@Polar\_s13](https://forums.speedlife.net/u/Polar_s13)\
**Post date:** [September 19, 2006, 10:43pm UTC](https://forums.speedlife.net/t/tranny-for-s13/100048/1 "2006-09-19T22:43:29Z")

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Hi I’am going to be doing a sr20 swap around June 2007 and i was wondering which tranny would be best to go with since sr20 trannies seem 2 mess up?

Thanks!

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**Author:** ![scribbles](https://avatars.discourse-cdn.com/v4/letter/s/bb73d2/32.png) [@scribbles](https://forums.speedlife.net/u/scribbles)\
**Post date:** [September 19, 2006, 11:02pm UTC](https://forums.speedlife.net/t/tranny-for-s13/100048/2 "2006-09-19T23:02:55Z")

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Sr trannies seem to mess up…

The guts of the KA and SR are virtually identical. The only other trannies I could think of going with might be an old top shifting CA tranny, or a 6 speed s15 tranny but those are not as strong as the 5 speed.

So basically. you have no options. you’ll need an SR bell housing no matter what, so just adjust the pins, tighten it up, maybe get a rebuild if it doesn’t work.

There’s nothing more you can do, or options to swap with.

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**Author:** ![alesserfate](https://avatars.discourse-cdn.com/v4/letter/a/f6c823/32.png) [@alesserfate](https://forums.speedlife.net/u/alesserfate)\
**Post date:** [September 19, 2006, 11:34pm UTC](https://forums.speedlife.net/t/tranny-for-s13/100048/3 "2006-09-19T23:34:35Z")

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whats wrong with SR trannsmissoins ?

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**Author:** ![Doba](https://avatars.discourse-cdn.com/v4/letter/d/a8b319/32.png) [@Doba](https://forums.speedlife.net/u/Doba)\
**Post date:** [September 20, 2006, 5:25am UTC](https://forums.speedlife.net/t/tranny-for-s13/100048/4 "2006-09-20T05:25:46Z")

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but if thats not sufficient enough and you feel like you need a monster to hold all that power youre putting down (better be a hell of alot) you can go with a Z32 tranny, search for info on that.