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Turbotcharged



Member Since: 03 Nov 2014
Location: Kernow
Posts: 29

United Kingdom 
How much are the Disco transfer box upgrades ?
Hi new to this forum, have a TD5 that I use daily driver....having some bits done to make it easier to drive 250 miles twice a week...this transfer box upgrade looks sensible...is it a DIY job or best left to the experts? and .....is it expensive??? currently the world at 65mps and booming vibro plant not helping my cause for keeping the truck!
Post #369210 3rd Nov 2014 1:01pm
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Marky Boy



Member Since: 25 Oct 2013
Location: Maidenhead
Posts: 96

United Kingdom 
I had the conversion carried out by Aschcrofts in Luton and well worth the money. From memory it was £725 all in with courtesy car. Would recommend.
Post #369212 3rd Nov 2014 1:08pm
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mk1collector



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

England 2004 Defender 110 Td5 CSW Bonatti Grey
I just picked a box up for £21 and as I was having the clutch done they swapped over the bits (beware it's not a straight swap) and put it back together at the same time so probably only cost me £70 all in with decent new oil.
Post #369214 3rd Nov 2014 1:15pm
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Turbotcharged



Member Since: 03 Nov 2014
Location: Kernow
Posts: 29

United Kingdom 
Thanks for speedy response! I asked the same question on another unamed forum and got 75 views.. and no comments! So thanks chaps and ...err right 700+ smackers or £80 if your handy...might have to ponder that for a while.....

Blew my budget buying it...three days after it arrived the fuel pump started really high pitched whine...checked forums etc suggested fuel going into sump...checked oil level...above the line but not a by a large degree...but it was serviced in Feb so should be bang on....so am looking at replacing injector seals...my experience on other motors has me worried as they were impossible to remove (the injectors) so whilst looking at it and scratching my head I though...lets get this EGR thing done, Loom other sensors and fuel filter etc..which may make it a tad more bearable at 65 and then read this forum...saw the transfer box upgrade ..and thought ..lets get it all done at once!

So thats like 2K !!!
Post #369217 3rd Nov 2014 1:29pm
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mk1collector



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

England 2004 Defender 110 Td5 CSW Bonatti Grey
Most transfer ratios on td5's are 1.4 but mine had a 1.6 transfer box in so it was very noisy on the motorway, so the 1.2 disco box has made a big difference to noise and I'm waiting till this tank of fuel is finished to see if I get a good difference on mpg too.
Post #369223 3rd Nov 2014 2:00pm
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Marky Boy



Member Since: 25 Oct 2013
Location: Maidenhead
Posts: 96

United Kingdom 
Ahhhh, 2k now but....
As a result of getting the transfer box done, I thought, great it now cruises happily at 70 but takes a bit longer to get there - not that much longer but enough to think I needed a remap. SO I then got an Alive stage 1 remap, filter and EGR removal done as well - all in about £500 or so.

Have to say its now very driveable, less cog swapping and the other day I got 28mpg although I was using super diesel which has had a noticable effect on mpg to the tune of 15% for the better.

Enjoy your money pit - its great !
Post #369238 3rd Nov 2014 4:07pm
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Hufflepuff



Member Since: 25 Oct 2014
Location: Hampshire
Posts: 727

England 2005 Defender 90 Td5 XS CSW Tonga Green
Had mine done last month, as a drive in drive out at a local independents using the Ashcroft kit. I can't remember if the price included VAT, but I was quoted £600 (had a large service done at the same time so its not easy to determine the cost now).

Much much much much better on the motorway now - whereas before it felt like I was thrashing it to maintain 65-70, it now comfortably sits at *cough* a higher speed, with reduced noise.

MPG wise though, I've actually seen a drop. Before I was getting up to 32mpg (2005 Td5 90), I'm struggling to get it above 30 at the moment. Might be something to do with the higher speed mind... All in all - a very worthy upgrade.
Post #369324 3rd Nov 2014 10:18pm
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Super7



Member Since: 05 Feb 2014
Location: South Bucks.
Posts: 132

United Kingdom 1999 Defender 90 Td5 CSW Rutland Red
mk1collector wrote:
Most transfer ratios on td5's are 1.4 but mine had a 1.6 transfer box


That's why mine stuggles to do much more than 70mph then - I think it must have the 1.6 transfer box.
Post #369705 5th Nov 2014 12:21pm
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Lambley



Member Since: 20 Apr 2013
Location: Mid Devon
Posts: 1435

United Kingdom 2006 Defender 90 Td5 HT Java Black
I made a few £££'s on mine, I bought a good used one for £100 and sold mine for £150 Very Happy

As I ended up doing it myself, after a couple of seals, oil etc I was still in profit!
Post #369739 5th Nov 2014 2:48pm
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Tiger



Member Since: 06 Jul 2012
Location: Wales
Posts: 2265

2004 Defender 110 Td5 CSW Java Black
1.6 were only fit to early 2.5 NAD 110s

All later 200/300/TD5s should have 1.4 boxes
Post #369746 5th Nov 2014 3:50pm
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ashtrans
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Member Since: 08 Nov 2008
Location: Harpenden
Posts: 257

United Kingdom 
mk1collector wrote:
Most transfer ratios on td5's are 1.4 but mine had a 1.6 transfer box in so it was very noisy on the motorway, so the 1.2 disco box has made a big difference to noise and I'm waiting till this tank of fuel is finished to see if I get a good difference on mpg too.


Some of the early TD5's had the 1.667 sticker put on in error, all were 1.410's,

Dave Dave
Post #369883 6th Nov 2014 6:36am
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mk1collector



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

England 2004 Defender 110 Td5 CSW Bonatti Grey
Mines a 2004 so not really early?
Post #369909 6th Nov 2014 9:36am
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Super7



Member Since: 05 Feb 2014
Location: South Bucks.
Posts: 132

United Kingdom 1999 Defender 90 Td5 CSW Rutland Red
Mines an early one, I'll have a look at the weekend.
Post #369910 6th Nov 2014 9:38am
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Paddie42



Member Since: 24 Apr 2014
Location: Hamphire
Posts: 230

England 2003 Defender 110 Td5 SW Belize Green
When I got by TD5 (built Oct 2003) I wondered what transfer box it had on it. After investigation it was a 1.4. I used the Serial number and the cross referenced it to this link http://www.ashcroft-transmissions.co.uk/in...oductId=45.

Hope this helps Smile
Post #369912 6th Nov 2014 9:43am
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GixerJas



Member Since: 18 Aug 2012
Location: Kernow, United Kingdom
Posts: 1

United Kingdom 2004 Defender 90 Td5 XS CSW Zambezi Silver
This may actually be my first post on here but as this forum is an excellent information source I've been a lurker for ages.

Not long after getting my 2004 Defender I had the transfer box swapped. I bought a disco 2 box with diff lock from a scrapper and had it changed by a local Landover mechanic, there were a few minor speedo drive swaps to be made between the two boxes but apparently it was straightforward. It was well worth doing and makes going over 60 far less worrying. The change typically drops the rev's by 15% so cruising around 70 is no bother.
My 90 has always been good on fuel as I usually get about 33 mpg or 320 - 340 miles between fills. Total cost was about £300, I haven't bothered with a remap yet because it isn't really necessary for me but I do fancy a bit more acceleration.

I was going to go for the Ashcroft gear ratio swap in the original box but after consideration swapping the box worked out as the easiest and cheapest option for me, 30,000 miles later it's still the best mod I did apart from changing the clutch pedal spring!
Post #374586 27th Nov 2014 1:11pm
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