# Brake Master Cylinder Question

**URL:** <https://forums.speedlife.net/t/brake-master-cylinder-question/106004>\
**Category:** SON240sx Automotive\
**Created:** [April 27, 2007, 9:08pm UTC](https://forums.speedlife.net/t/brake-master-cylinder-question/106004 "2007-04-27T21:08:35Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![ReD\_S13](https://avatars.discourse-cdn.com/v4/letter/r/71e660/32.png) [@ReD\_S13](https://forums.speedlife.net/u/ReD_S13)\
**Post date:** [April 27, 2007, 9:08pm UTC](https://forums.speedlife.net/t/brake-master-cylinder-question/106004/1 "2007-04-27T21:08:35Z")

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I have a master cylinder from my 1990 s13 parts car without ABS and it has 3 brake lines going into it. I was wondering if i can still use this for my 89 with ABS. The one without ABS has 3 ports and the one with ABS has 2 ports for 2 brake lines. I was thinking of plugging the extra hole on the one from my parts car and using it. Is it advisable to do this ? Has anyone done it before?

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**Author:** ![system](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/2X/b/b7170c8eddc0b95ece6b88172b2f416a08489a45.png) [@system](https://forums.speedlife.net/u/system)\
**Post date:** [April 27, 2007, 10:39pm UTC](https://forums.speedlife.net/t/brake-master-cylinder-question/106004/2 "2007-04-27T22:39:20Z")

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i had a car that had that done and it worked fine just plug the back plug and use the other 2 it would still be better to use what is factory for your application but it does work

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**Author:** ![robbbby](https://avatars.discourse-cdn.com/v4/letter/r/b19c9b/32.png) [@robbbby](https://forums.speedlife.net/u/robbbby)\
**Post date:** [April 28, 2007, 7:05am UTC](https://forums.speedlife.net/t/brake-master-cylinder-question/106004/3 "2007-04-28T07:05:35Z")

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It will work fine if you plug one hole on the master cylinder and use one line to ‘T’ off to both front brakes.  
Anybody who installs a line lock on their vehicle has to do the same and the brakes still work just fine.

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<div class="post-metadata">

**Author:** ![ReD\_S13](https://avatars.discourse-cdn.com/v4/letter/r/71e660/32.png) [@ReD\_S13](https://forums.speedlife.net/u/ReD_S13)\
**Post date:** [April 27, 2007, 9:08pm UTC](https://forums.speedlife.net/t/brake-master-cylinder-question/106004/4 "2007-04-27T21:08:35Z")

</div>

I have a master cylinder from my 1990 s13 parts car without ABS and it has 3 brake lines going into it. I was wondering if i can still use this for my 89 with ABS. The one without ABS has 3 ports and the one with ABS has 2 ports for 2 brake lines. I was thinking of plugging the extra hole on the one from my parts car and using it. Is it advisable to do this ? Has anyone done it before?

---

<div class="post-metadata">

**Author:** ![system](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/2X/b/b7170c8eddc0b95ece6b88172b2f416a08489a45.png) [@system](https://forums.speedlife.net/u/system)\
**Post date:** [April 27, 2007, 10:39pm UTC](https://forums.speedlife.net/t/brake-master-cylinder-question/106004/5 "2007-04-27T22:39:20Z")

</div>

i had a car that had that done and it worked fine just plug the back plug and use the other 2 it would still be better to use what is factory for your application but it does work

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<div class="post-metadata">

**Author:** ![robbbby](https://avatars.discourse-cdn.com/v4/letter/r/b19c9b/32.png) [@robbbby](https://forums.speedlife.net/u/robbbby)\
**Post date:** [April 28, 2007, 7:05am UTC](https://forums.speedlife.net/t/brake-master-cylinder-question/106004/6 "2007-04-28T07:05:35Z")

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It will work fine if you plug one hole on the master cylinder and use one line to ‘T’ off to both front brakes.  
Anybody who installs a line lock on their vehicle has to do the same and the brakes still work just fine.
