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Kirby0016

Member Since: 11 May 2016
Location: Lisburn
Posts: 2

TDI transfer box on a Puma TDCI?

Hi,

The transfer box on the Puma has died, and there happens to be a TDI transfer box knocking about the farm, does anyone know if it would be compatible with the TDCI gearbox or does the fact that the donor gearbox was 5 speed and the TDCI a 6 speed make it an unlikely pairing?

Thanks,
David.

11th May 2016 11:41am

Martin
Site Admin

Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6601

2015 Defender 90 Puma 2.2 XS CSW Montalcino Red

The high ratio gearing is different, the Puma is 1.222:1

1988 90 Td5 NAS soft top

2015 D90 XS SW

11th May 2016 11:46am

nickhodgson

Member Since: 08 Dec 2009
Location: Zambia
Posts: 174

It should fit though. You may have to modify the wiring to the Diff Lock Switch and will have to use the Puma Speedo Sensor.

The gearing will make your engine revs higher for the same speed when compared to the old Puma Transferbox. Depending on how you use the car this might not be a problem. 1995 300tdi Defender 90 P/UP
2011 Puma Defender 130 D/C
2000 300tdi Defender 110 P/UP
2015 Discovery 4 SDV6 HSE

12th May 2016 8:10am

Kirby0016

Member Since: 11 May 2016
Location: Lisburn
Posts: 2

Thanks for the advice guys, the main concern was would it fit. So it will be going on soon and i'll let you know how it goes.

26th May 2016 1:59pm

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 17316

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

You are going to have an exceptinoally low first gear!

26th May 2016 4:38pm

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7983

2011 Defender 110 Puma 2.4 USW Stornoway Grey

unless its a disco tdi tbox it will more than likely be a 1.4 box. old 110 could be a 1.6 but not many of them about now. Puma as std is 1.2 as above.

if you do a fair amount of work over 50mph it will work harder. 1st will become redundant. assuming you have 31" tyres as std. Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop

26th May 2016 7:27pm

tuesdayfox

Member Since: 23 Jun 2013
Location: Sydney,OZ
Posts: 129

2013 Defender 110 Puma 2.2 SW Zambezi Silver

newbie here.

but itn't the low gear ratio a good thing when it comes to offroading?
because my friend with Patrols always brag about their 85% reduction gear....

27th May 2016 6:30am

tuesdayfox

Member Since: 23 Jun 2013
Location: Sydney,OZ
Posts: 129

blackwolf wrote:
You are going to have an exceptinoally low first gear!

also what if I change the tyre to 35?
to be more exact, what is the difference between changing transferbox gear ratio to changing diff ratio?
any pros and cons?

cheers

27th May 2016 6:35am

Cupboard

Member Since: 21 Mar 2014
Location: Suffolk
Posts: 2971

2011 Defender 110 Puma 2.4 HT Corris Grey

tuesdayfox wrote:
newbie here.

but itn't the low gear ratio a good thing when it comes to offroading?
because my friend with Patrols always brag about their 85% reduction gear....

Well you've got low range...

Changing transfer box ratio has a similar effect to changing diff ratio (in high range) it's just the speed reduction happens in a different place. I think I'm right in saying they all have the same low range ratio.

27th May 2016 6:47am

nickhodgson

Member Since: 08 Dec 2009
Location: Zambia
Posts: 174

Did it work out? 1995 300tdi Defender 90 P/UP
2011 Puma Defender 130 D/C
2000 300tdi Defender 110 P/UP
2015 Discovery 4 SDV6 HSE

27th May 2016 7:38am

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7983

correct they all have same low range ratios 3.32 for std 1.4, 1.6 and 1.2s Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop

Last edited by jst on 28th May 2016 6:56am. Edited 1 time in total

28th May 2016 6:54am

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7983

tuesdayfox wrote:
blackwolf wrote:
You are going to have an exceptinoally low first gear!

also what if I change the tyre to 35?
to be more exact, what is the difference between changing transferbox gear ratio to changing diff ratio?
any pros and cons?

cheers

Try a gear ratio calculator

1.4 with 35s would work far better than the 31s with 1.2 box. i am not sure on exact difference will see if i can find the ratio calculator. Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop

28th May 2016 6:55am

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7983

will hopefully work

https://www.defender2.net/gallery/albums/u...ulator.xls Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop

28th May 2016 6:58am

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7983

from what i can see 31s on a 1.2 against 35s on a 1.4 are near enough the same from above spreadsheet Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop

28th May 2016 7:01am

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