2002 3.9 lsd differential
#7
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Location: Very NorCal
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Yes. Pop the axles out, take the PPF and driveshaft off, remove the perimeter bolts, pull the entire diff out of the housing, insert new diff. Assembly is reverse of disassembly. I'm sure I'm leaving some steps out, like fluid and stuff. I think someone did a write-up on m.net a while ago but its dirt simple. I swapped my 4.3 open for a 4.1 torsen when I had the housing out to replace the bushings with MazdaComp units.
Take the thing that looks like this:
![](https://www.miataturbo.net/attachments/miata-parts-sale-trade-5/43255-2002-3-9-lsd-differential-mx5diff.jpg?dateline=1336770343)
Remove the part that looks like this:
![](https://www.miataturbo.net/attachments/miata-parts-sale-trade-5/43256-2002-3-9-lsd-differential-img_1623.jpg?dateline=1336770343)
So the housing looks like this:
![](http://www.bigdweeb.com/fs/diff-02.jpg)
Then take your new 3.9 one of these:
![](https://lh3.googleusercontent.com/-DK95RNA_x_E/Tma-VSOrtOI/AAAAAAAAAG4/e9VOjsv6JMo/P1050127.JPG)
Then make it look like this again:
![](https://www.miataturbo.net/attachments/miata-parts-sale-trade-5/43257-2002-3-9-lsd-differential-torsendx4.jpg?dateline=1336770343)
Seriously guys, this is stupid simple and well documented on this forum and others. I'm feeling nice today so I'll throw you this bone: Miata Drivetrain Interchange Guide
Warning: Some of the above images may be 1.6 parts and should be used for reference only.
Take the thing that looks like this:
![](https://www.miataturbo.net/attachments/miata-parts-sale-trade-5/43255-2002-3-9-lsd-differential-mx5diff.jpg?dateline=1336770343)
Remove the part that looks like this:
![](https://www.miataturbo.net/attachments/miata-parts-sale-trade-5/43256-2002-3-9-lsd-differential-img_1623.jpg?dateline=1336770343)
So the housing looks like this:
![](http://www.bigdweeb.com/fs/diff-02.jpg)
Then take your new 3.9 one of these:
Then make it look like this again:
![](https://www.miataturbo.net/attachments/miata-parts-sale-trade-5/43257-2002-3-9-lsd-differential-torsendx4.jpg?dateline=1336770343)
Seriously guys, this is stupid simple and well documented on this forum and others. I'm feeling nice today so I'll throw you this bone: Miata Drivetrain Interchange Guide
Warning: Some of the above images may be 1.6 parts and should be used for reference only.
Last edited by EO2K; 05-11-2012 at 05:05 PM.
#15
Elite Member
iTrader: (37)
Join Date: Apr 2010
Location: Very NorCal
Posts: 10,448
Total Cats: 1,900
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Are you quite serious?
ಠ_ಠ
--> http://www.solomiata.com/Drivetrain.html <-- It's candy, like in the van. You know you like it...
eb66: Can you PLEASE get some pics all up in herr so people know what you are selling? Thanks!
ಠ_ಠ
--> http://www.solomiata.com/Drivetrain.html <-- It's candy, like in the van. You know you like it...
eb66: Can you PLEASE get some pics all up in herr so people know what you are selling? Thanks!
Last edited by EO2K; 05-23-2012 at 02:48 PM.