https://dev.z31library.com/index.php?action=history&feed=atom&title=Forums%2FZ31P%2Fz31-performance-upgrade-forums_driveline-aa%2FM30_DifferentialForums/Z31P/z31-performance-upgrade-forums driveline-aa/M30 Differential - Revision history2026-08-15T12:25:21ZRevision history for this page on the wikiMediaWiki 1.43.8https://dev.z31library.com/index.php?title=Forums/Z31P/z31-performance-upgrade-forums_driveline-aa/M30_Differential&diff=4613&oldid=prevz31p_Amreboot: Forum archive import (z31performance)2026-05-15T05:08:34Z<p>Forum archive import (z31performance)</p>
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'''amreboot:''' <small>(2012-06-17 06:37:04)</small><br />
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So I was at the junkyard and I saw a M30. I grabbed a few parts from it.<br />
<br />
On my way home, I thought about the differential on M30's.<br />
<br />
Are they VLSD?<br />
<br />
Of course I searched around on the net, but honestly, most of the info is very inconclusive.<br />
<br />
Does anyone know?<br />
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'''Richard_85ZXT:''' <small>(2012-06-17 08:21:37)</small><br />
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what I'm finding is no and won't fit anyway<br />
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[http://www.zcar.com/70-83_tech_discussion_forum/infiniti_m30_differential_669371.0.html http://www.zcar.com/70-83_tech_discu…_669371.0.html]<br />
<br />
per wikipedia "The differential was a Nissan R200-type open differential."<br />
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and the FSM for M30 propeller shaft and differential sections [http://www.f31club.com/manual/propeller_shaft_differential/ http://www.f31club.com/manual/propel…_differential/]<br />
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hope this helps<br />
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'''michaelp:''' <small>(2012-06-17 14:58:59)</small><br />
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My M30 has an open diff, unsure if all of them are open or not…but its likely that most of them are.<br />
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'''markjo:''' <small>(2012-07-06 20:35:02)</small><br />
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All M30 differentials are R200 and open, just confirming since I own one. Transmissions were all automatic and RE4R01A.<br />
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'''NissanEgg:''' <small>(2012-07-06 21:25:34)</small><br />
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FSM pic shows it to be a long nose R200. Don't see why it won't fit.<br />
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'''amreboot:''' <small>(2012-07-06 21:27:27)</small><br />
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It'll fit but the problem is that this R200 long nose has an ABS sensor which makes the snout 1" longer. So, it'd be a tight fit for the drive shaft.<br />
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'''wire:''' <small>(2012-07-19 13:45:44)</small><br />
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M30 differential is a 4 pinion open type.<br />
<br />
If you swap over the proper companion flange from another R200 such as Z31, 280zx turbo, you find the dimensions are the same.<br />
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It's the m30 specific flange that is longer.<br />
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'''michaelp:''' <small>(2012-07-19 19:34:45)</small><br />
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{{Quote|user=|}}<br />
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87-89 Z31 R200s are identical to M30 R200s.......<br />
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'''wire:''' <small>(2012-07-20 15:45:12)</small><br />
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Dimensions are the same but not completely identical.<br />
<br />
The M30 has an ABS sensor that mounts on a machined surface at the snout of the differential which samples the teeth of the "wheel" that is part of the M30 flange.<br />
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The difference is important to S30 drivers because it will hit a crossmember but the z31 crowd won't have that issue.<br />
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'''Silli:''' <small>(2013-01-24 15:03:38)</small><br />
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{{Quote|user=|}}<br />
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That is true. I have 2 diffs. One is factory fitted R200abs and other is M30 -92 R200abs. Only differences are gearing, finned cover and hole on top of diff for oil circulation cooling system. I am talking about euro spec 2+2 -89.</div>z31p_Amreboot