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Alextd5



Member Since: 11 Feb 2017
Location: Gloucestershire
Posts: 322

United Kingdom 2006 Defender 90 Td5 XS CSW Bonatti Grey
Fitting a td5 discovery transferbox into my 90
Hi, I am after some help with fitting a discovery transferbox to my 90. I have just purchased an early discovery td5 t-box and I've been told its not a simple swap? Is there anything i need to beware of? Any advice will be appreciated. Thanks Alex
Post #601012 11th Feb 2017 7:38pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8048

 2011 Defender 110 Puma 2.4 USW Stornoway Grey
What do you want to know specifically?

Into what? Td5 90 Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #601015 11th Feb 2017 7:46pm
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Alextd5



Member Since: 11 Feb 2017
Location: Gloucestershire
Posts: 322

United Kingdom 2006 Defender 90 Td5 XS CSW Bonatti Grey
Thanks for your reply James. Ive been told that the speedo drive has to be changed due to the different ratio etc, and that they can be a nightmare to remove. I'm unsure if I've been given false information. Is it a straight swap or are there bits that need swapping over ? Alex
Post #601019 11th Feb 2017 7:57pm
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ickle



Member Since: 22 Jul 2010
Location: South Vendee
Posts: 1784

France 2008 Defender 110 Puma 2.4 CSW Alpine White
Check you've bought a version with a diff lock, some discos didn't have them.

If it has got a diff lock, as far as I can remember its handbrake swap complete, hi/lo and diff lock linkage swap and then straightforward.

I did it on my tdi bitsa and was running 265/85 R16 and the speedo was spot on.

Good luck

Keith
Post #601023 11th Feb 2017 8:03pm
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mk1collector



Member Since: 17 Sep 2009
Location: West Yorkshire
Posts: 6769

England 2004 Defender 110 Td5 CSW Bonatti Grey
I had to swap the nose and flange over too. Ray
My build thread
http://www.defender2.net/forum/topic17615.html
Post #601025 11th Feb 2017 8:06pm
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Alextd5



Member Since: 11 Feb 2017
Location: Gloucestershire
Posts: 322

United Kingdom 2006 Defender 90 Td5 XS CSW Bonatti Grey
Thanks for your help. Yea new box does have difflock. I was pretty sure it was a simple change over but I have read a couple of posts that it wasn't that simple due to the different ratio box etc. I currently have 235 85 16's . Thanks for you help 'ickle'.
Mk1collector How come you had to change the flange etc?
Post #601034 11th Feb 2017 8:34pm
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geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

United Kingdom 
mk1collector wrote:
I had to swap the nose and flange over too.


As above. you will have to swap this over, along with your transfer brake This is a good mod.
Post #601050 11th Feb 2017 9:21pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17419

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Disco 2 front propshaft has a larger diameter flange at the transfer box end than Defender (due to the DC joint at that end of the propshaft).

Therefore you either need to fit a (smaller) Defender flange on the transfer box, or - arguably a better solution but much more expensive - upgrade the front propshaft to a DC type.
Post #601068 11th Feb 2017 10:25pm
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mk1collector



Member Since: 17 Sep 2009
Location: West Yorkshire
Posts: 6769

England 2004 Defender 110 Td5 CSW Bonatti Grey
Alextd5 wrote:

Mk1collector How come you had to change the flange etc?


As above Thumbs Up it really is worth doing though. Ray
My build thread
http://www.defender2.net/forum/topic17615.html
Post #601069 11th Feb 2017 10:29pm
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Alextd5



Member Since: 11 Feb 2017
Location: Gloucestershire
Posts: 322

United Kingdom 2006 Defender 90 Td5 XS CSW Bonatti Grey
Ok cheers guys. Do i remove the flange or the complete nose that mk1collector mentioned earlier? Ive just checked the box which im planning to put in and the serial number is 11d ? Can't find the ratio for this box? I purchased its as it was removed from a disco 2 supposedly.

Ive been reading posts on here for a long time and wished I'd registered a lot sooner. Thanks to all that has helped.
Post #601081 11th Feb 2017 11:11pm
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psimpson7



Member Since: 20 Nov 2013
Location: Gold Coast, Qld.
Posts: 221

Australia 2014 Defender 90 Puma 2.2 XS CSW Loire Blue
The rear output housing which holds the speedo drive isn't drilled for the speedo drive on a D2 LT230.

As such, you can't just swap the speedo drive, You actually have to swap the entire rear output housing.

Having said that it's not particularly difficult to do. 2001 90 HT 6.0LS/6spdAuto.
2003 90 td5 soft top.
2014 90 XS SW 2.2.
Post #601082 11th Feb 2017 11:14pm
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psimpson7



Member Since: 20 Nov 2013
Location: Gold Coast, Qld.
Posts: 221

Australia 2014 Defender 90 Puma 2.2 XS CSW Loire Blue
Alextd5 wrote:
Ive just checked the box which im planning to put in and the serial number is 11d ? Can't find the ratio for this box? I purchased its as it was removed from a disco 2 supposedly.


Are you sure its 11d? not 41d 2001 90 HT 6.0LS/6spdAuto.
2003 90 td5 soft top.
2014 90 XS SW 2.2.
Post #601085 11th Feb 2017 11:16pm
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Alextd5



Member Since: 11 Feb 2017
Location: Gloucestershire
Posts: 322

United Kingdom 2006 Defender 90 Td5 XS CSW Bonatti Grey
Thanks psimpson7 you were correct 41D is the box code. Quick rub down confirmed that. From what you guys have said its a simple job. Unbolt rear output housing and fit my existing one. Bolt back into my 90. A fiend of mine likes to over complicate things as he thinks I should leave it standard. [/quote]
Post #601145 12th Feb 2017 11:01am
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geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

United Kingdom 
Oops wrong thread. Laughing
Post #601147 12th Feb 2017 11:09am
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8048

 2011 Defender 110 Puma 2.4 USW Stornoway Grey
the lt230 disco boxes i have fitted have all had the speedo drive on the rear housing.

i would use linkage and handbrake that you already have and change to def flanger as above. no need to change whole nose unit. Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #601810 14th Feb 2017 4:28pm
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