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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6304

England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
different gearbox
ignoring autos what viable options are there....if any?

it would be great in my mind to find a heavy duty 6 speed box that happened to be a bit longer than the existing and could do away with the extension shaft that fails but still having it looking standard. any thoughts / any options out there?
Post #520378 2nd Apr 2016 7:58pm
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Cetane



Member Since: 27 Nov 2012
Location: Lancashire
Posts: 171

United Kingdom 2010 Defender 110 Puma 2.4 HT Galway Green
Why not this.....

http://www.ashcroft-transmissions.co.uk/mt...t-kit.html

It seems a bit much to re engineer a new gearbox to solve the issue when it can be resolved by grease or the Ashcroft mod.
Post #520382 2nd Apr 2016 8:13pm
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Cetane



Member Since: 27 Nov 2012
Location: Lancashire
Posts: 171

United Kingdom 2010 Defender 110 Puma 2.4 HT Galway Green
If you specifically want a meaty gearbox I think the MT85 is used behind the 3.2ltr 5cyl TDCIs. But believe there are some mods required.

Last edited by Cetane on 3rd Apr 2016 5:10pm. Edited 1 time in total
Post #520385 2nd Apr 2016 8:15pm
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Green Machine



Member Since: 19 Nov 2010
Location: North Yorkshire
Posts: 1226

United Kingdom 2005 Defender 90 Td5 CSW Tonga Green
I think if there was a more suitable off-the-shelf gearbox, Land Rover would be using it. This would avoid the endless number of clutch / adapter shaft warranty claims that they have had to deal with. I think we can be in little doubt that someone at LR is really regretting the setup from that point of view! But, that was clearly the best option at the time the new driveline was conceived from a cost / practicality standpoint. Engineering a completely new gearbox just for this application would have probably been commercial suicide for such a low-volume product as the Defender. The gearbox itself doesn't actually seem to be the major issue (although there are documented problems with the box), it's the driveline that it is part of that causes most of the problems. 2005 Td5 | 90 Station Wagon | Tonga Green
Post #520389 2nd Apr 2016 8:31pm
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6304

England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
Like you say 'cost' - I believe this what lead to the decision on how to chuck it all together.

Perhaps there's a better overall solution that wouldn't take too much engineering but does cost more?

I'm not saying the gbox isn't up to it (not saying it is either - my first box failed at 26k easy miles?) but maybe th overall package isn't? Certainly it ain't great?
Post #520472 3rd Apr 2016 9:38am
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Shax



Member Since: 05 Oct 2010
Location: London
Posts: 391

England 2010 Defender 90 Puma 2.4 XS CSW Stornoway Grey
Cetane wrote:
Why not this.....

http://www.ashcroft-transmissions.co.uk/mt...t-kit.html

It seems a bit much to re engineer a new gearbox to solve the issue when it can be resolved by grease or the Ashcroft mod.


I have the Ashcroft kit fitted to mine.. The original shaft was well and truly shagged! ... ,-------,
.. I [__][_]|__
.. I __ |"_|"__|
.. "(o)====(o)"
^^_-^-_^-^_^^^^^--^^^^
PAUL
G7ALW 14.200 USB
26FB458 / 27.275 SSB
Post #521357 5th Apr 2016 9:32pm
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