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reabros



Member Since: 05 Jan 2020
Location: East Sussex
Posts: 12

United Kingdom 2006 Defender 90 Td5 HT Cairns Blue
What type rear diff do I have?
My 2006 defender 90 has slight play in rear diff which makes an unwanted clunk sometimes so looking to rebuild/replace but not sure what type of diff I have? Any help appreciated! Thanks
Post #810124 13th Jan 2020 8:59pm
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5408

2006 Defender 110 Td5 USW Zermatt Silver
That will be a “Rover” diff

How much play do you have?

The play can come from diff, shafts, and drive flanges.
Post #810130 13th Jan 2020 9:15pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 7664

2011 Defender 110 Puma 2.4 USW Stornoway Grey
diffs usually whine not clonk. sure it's not the drive members or a Bush. Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop
Post #810135 13th Jan 2020 9:32pm
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bankz5152



Member Since: 02 Feb 2017
Location: South London/North Kent
Posts: 2049

2004 Defender 110 Td5 DCPU Epsom Green
Take a pic. Likely a long nose Instagram @defender_ventures
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Post #810139 13th Jan 2020 9:58pm
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4RF RDS



Member Since: 19 Jul 2015
Location: Ottawa
Posts: 890

Canada 2000 Defender 110 Td5 XS CSW Epsom Green
Rear end clunk is usually the wheel flanges being worn. The diff does not typically clunk, hums, whines, whirrs not clunk. 90s use Rover diffs unless it been modified.

Anyway, good luck Thumbs Up 2010 Range Rover MkIII Autobiography Super Charged (Idris)
2003 Range Rover Mk III (Desmond FitzWilliam)
2000 Defender 110 CSW TD5 (CTX)
1992 Range Rover Classic (Lizzy)
1972 Series III 300 Tdi (Stanwood)
1967 MGB GT

Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats.
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Post #810208 14th Jan 2020 3:01pm
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rallysteve



Member Since: 10 Feb 2014
Location: South Yorks
Posts: 2194

United Kingdom 2002 Defender 110 Td5 DCPU Keswick Green
A-Frame balljoint is also a common candidate for clunking when pulling away/changing gear.

Steve 02' 110 TD5 Double Cab Rebuild Thread
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Post #810213 14th Jan 2020 3:30pm
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reabros



Member Since: 05 Jan 2020
Location: East Sussex
Posts: 12

United Kingdom 2006 Defender 90 Td5 HT Cairns Blue
Thanks for the replies. Originally I did think it was the A-frame ball joint and then had a friend think that was the clunk when pulling away/changing gear however I took it to a defender specialist near me and they said the A-frame ball joint was fine and it was the rear diff that had play making the clunking noise? Had new rear half shafts put it by them at the same time as they were fairly worn and flanges were ok so I am ruling that out I think. But not really sure what to think now!
Post #810241 14th Jan 2020 7:49pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 7664

2011 Defender 110 Puma 2.4 USW Stornoway Grey
Sorry the shafts were worn but the flanges were ok? both original? never heard it being that way around.

In my experience, i know repeting myself, but diffs dont clonk.

when do you get the noise? pulling away, change direction (fwd to rev) on initial takeup?x coasting, under load? Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop
Post #810309 15th Jan 2020 8:49am
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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5725

United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
Could you get a 'clunk' from the diff end if the splines are worn on the diff end where the shafts sit? 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #810316 15th Jan 2020 9:42am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16809

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
The diff end splines are properly lubricated and don't tend to wear significantly.
Post #810328 15th Jan 2020 10:20am
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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5725

United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
Cheers, so the only real wear would be the splines then. 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #810329 15th Jan 2020 10:21am
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reabros



Member Since: 05 Jan 2020
Location: East Sussex
Posts: 12

United Kingdom 2006 Defender 90 Td5 HT Cairns Blue
jst wrote:
Sorry the shafts were worn but the flanges were ok? both original? never heard it being that way around.

In my experience, i know repeting myself, but diffs dont clonk.

when do you get the noise? pulling away, change direction (fwd to rev) on initial takeup?x coasting, under load?


Never get it while coasting. Think it's normally if I put my foot down pulling away quickly and its avoidable if I'm being careful. Fairly certain its coming from rear end somewhere, Im thinking it must be the A-frame (even though was told otherwise by a specialist garage) if the diffs definitely don't make a clonk!
Post #810342 15th Jan 2020 12:24pm
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roel



Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039

Netherlands 2003 Defender 90 Td5 PU Caledonian Blue
If you are looking for play in the driveline, you will find it is probably not play at one point. It will be play in all between all the different parts.
What I would do in your case. Park the car and choke the front wheels. Put the gear box and transfer box in neutral.
Turn the dive shaft to both sides near the diff and see if you have a lot off play. Do the same with the drive shaft to the front axle. If it is about the same it is general wear. If the rear has a lot more play you might have to look at it. Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)
Post #810394 15th Jan 2020 4:59pm
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