 | Home > Maintenance & Modifications > Transfer box - changing to a Disco box? |
 
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| equipe59 Member Since: 02 Jun 2013 Location: Cotswoldshire Posts: 38   
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Hi,
Yes No No Hope that helps!! 
Seriously though, I changed mine but in the end went for an Ashcroft box as the tranny box I considered was a second-hand Disco TDi200 box, but my spanner-man (MiD Engineering) advised against it as a tweaked TD5 would have a fair chance of wrecking it - something to do with the cross-drilled input shaft, or rather lack of 
As I like my 90, and want to keep it for a while, I decided a 'known quantity' tranny box was a better bet Glad I did as when I opened up the Disco box for a look-see, the innards were full of emulsified oil-and-silt mix, which would have been expensive...  |
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11th Oct 2013 7:29pm |
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| diesel_jim Member Since: 13 Oct 2008 Location: hiding Posts: 6038 
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Bear in mind that this era of disco transfer may not have the difflock linkage on it... you may need to swap some bits over or buy the relavent parts (Ashcrofts springs to mind) to make the disco box difflock-able. |
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11th Oct 2013 7:31pm |
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| DC101 Member Since: 01 Jul 2012 Location: Pudsey, West Yorkshire Posts: 249 
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Thanks for the advice.
With reference to transfer box noise, I had in my mind somewhere that I was told about a 'Q' denoted gear set, which meant the gears ran quieter than the standard Defender. Have I imagined this? 
I would really like to lose the whine at motorway speeds. |
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11th Oct 2013 9:44pm |
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| Retroanaconda Member Since: 04 Jan 2012 Location: Scotland Posts: 2555 
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You shouldn't be able to hear the transfer box at motorway speeds. Certainly not over the engine, road and wind noise anyway. If there's a noticeable whine then something's amiss.
There is a Q variant yes with quieter gears, can't remember what it was fitted to though I am afraid! |
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11th Oct 2013 9:51pm |
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| pj2106 Member Since: 20 Dec 2012 Location: Huntingdon AKA The Shire Posts: 1500 
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yes dfinateley worth while and with a tune makes it much more driveable bas done a really nice smooth tune on mine and can now cruise at 80 but will touch 100 if pushed
best mod I have done to mine so far 2008 110 2.4 XS Utility (Hagrid) 2002 90 TD5 Hardtop (Sully) Sold 1998 300TDi D1 (Billy) Sold |
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11th Oct 2013 10:01pm |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6485 
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All Td5s have LT230Q transfer boxes
 1988 90 Td5 NAS soft top
2015 D90 XS SW |
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11th Oct 2013 10:08pm |
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| DC101 Member Since: 01 Jul 2012 Location: Pudsey, West Yorkshire Posts: 249
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The whine is noticeable on slow (55+) motorway speeds, and noisier the faster you go (not that I go that fast..!).
Not having driven anyone else's TD5 I assumed it was normal. |
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11th Oct 2013 10:11pm |
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| diesel_jim Member Since: 13 Oct 2008 Location: hiding Posts: 6038
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Mine doesn't have the Q gears (not that I know of anyway) and it's not unduly noisy.
Although having said that, i've not driven any great distance in a puma so can't really compare. |
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11th Oct 2013 10:17pm |
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| Gareth Member Since: 12 Dec 2011 Location: Bramhall Posts: 1038  
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Mine has a road speed related whine at anything over 45. It gets drowned out by other noise at about 65. I had the oil changed and it did quieten it down a bit. Its always done for as long as I have had the vehicle, and has got no louder. Previous owner also said it had always made the noise, So I too presumed they all did it.
I have not swapped the gears yet, but am planning to rebuild my own box. 2021 Defender 110 X-Dynamic HSE D300 MHEV 1966 S2a 109 aka Betsy 1968 S2a 88 aka Bob 2014 Jaaaag F Type 3.0 Supercharged. |
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12th Oct 2013 8:20am |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7695
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NOT ALL TD5s has Q gears Cheers
James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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12th Oct 2013 9:29pm |
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| DC101 Member Since: 01 Jul 2012 Location: Pudsey, West Yorkshire Posts: 249
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Thanks for the replies . The noise from mine also 'goes' at 'higher' speeds due to being lost in the general racket. My main reason for the transfer box change is quieter motorway driving, and hopefully the lower engine revs will significantly help. Out of interest, if not all TD5's had a Q box, is there anyway of telling on the box casing etc ?
Cheers |
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13th Oct 2013 11:11am |
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