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Merlin



Member Since: 30 Oct 2010
Location: Newmarket
Posts: 980
United Kingdom 
4 pin diff question
Can I fit a 4 pin diff to the front of a 2008 Defender as a direct replacement?

I'm told not if you have ABS but I don't understand why.

Peter
Post #803168 22nd Nov 2019 1:58pm
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5416
2006 Defender 110 Td5 USW Zermatt Silver
Yes as long as it is the correct diff.
Post #803186 22nd Nov 2019 4:15pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16858
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Yes. Four gear diffs were fitted as standard towards the end of production after the two gear diff proved of inadequate strength for the Puma engine.
Post #803197 22nd Nov 2019 4:51pm
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oneten110



Member Since: 02 Jul 2011
Location: Wish I was still in France
Posts: 741
United Kingdom 
I cannot see why the fitting of a 4 pin diff would make any difference to an ABS equipped vehicle.
The function of a differential is not affected in any way whether it is 4 pin or 2 pin It is not a Defender, it is a One_Ten
Post #803239 22nd Nov 2019 10:00pm
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BogMonster



Member Since: 05 Feb 2008
Location: Stanley
Posts: 389
Falkland Islands 2015 Defender 110 Puma 2.2 USW Corris Grey
blackwolf wrote:
Yes. Four gear diffs were fitted as standard towards the end of production after the two gear diff proved of inadequate strength for the Puma engine.


After the 2 pin diff's long history of strong and dependable service with the lesser engines Laughing

No problem with fitting any sort of diff with ABS in my view. Any open diff has the same function, a torque biasing system will almost certainly help the ABS, and a fully locking diff will just mean the ABS doesn't function when the driveline is all locked up. ---
2006 Defender 110 SW 300Tdi • 2011 Ford Ranger XLT crewcab • 2015 Defender 110 Station Wagon Utility TDCi
Post #803282 23rd Nov 2019 10:17am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16858
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
BogMonster wrote:
...After the 2 pin diff's long history of strong and dependable service with the lesser engines Laughing ...

True, but don't forget that the TDCi is the torquiest engine ever fitted to a mass production Defender, and also produces a lot of torsional vibration, both of which really hammer the transmission.
Post #803284 23rd Nov 2019 10:58am
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BogMonster



Member Since: 05 Feb 2008
Location: Stanley
Posts: 389
Falkland Islands 2015 Defender 110 Puma 2.2 USW Corris Grey
It's interesting (if a little OT) to note that they upgraded the front diff to a four-pin, and then downgraded the centre diff to one made of cheese to compensate Rolling Eyes ---
2006 Defender 110 SW 300Tdi • 2011 Ford Ranger XLT crewcab • 2015 Defender 110 Station Wagon Utility TDCi
Post #803380 24th Nov 2019 10:22am
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