 | Home > Td5 > Stock TD5 and a 1.2 Transfer Box |
 
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| excossack Member Since: 22 Feb 2012 Location: North West Posts: 5899   
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I had the 1.2 t/box and went back to a 1.4 t/box.
I found around town it was OK, but dragging cars through a forest or on race tracks on the back of the Harvey I was constantly up and down the box. Much better for me with a 1.4 box. Depends on the usage I guess. 1999 Defender TD5 110 Regards John M0VAZ Econet Station 48 no clock |
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28th Feb 2020 11:25am |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8182  
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Borrow a set of 33" tyres and run around on them for a bit. Its approx same ratio change. Would give you a good idea of affect of fitting 1.2 box without the agro. Lots of disco2 boxes dont have diff lock which if your towing could have impact even if not doing any off road. Cheers
James 110 2010 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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28th Feb 2020 12:24pm |
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| miker Member Since: 13 Sep 2015 Location: Surrey Posts: 1772 
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That assumes I have a friend with a spare set of 33" tyres!
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28th Feb 2020 2:19pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8182
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possibly i was just trying to give you options before taking the t box off and replacing it.
thought it might prompt someone in your area to offer. buy one and try it, what is it 3.5hrs to change it? stock td5 towing on any hills and i would of thought 1.4 would be better suited. Ashcrfot 1.3? Cheers James 110 2010 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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28th Feb 2020 2:57pm |
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| miker Member Since: 13 Sep 2015 Location: Surrey Posts: 1772
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Ashcroft 1.3 does look like a good compromise, just again added cost! If I'm going to go down the line of a refurb, I'd love to get a centre ARB but they aren't cheap!
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28th Feb 2020 3:04pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8182
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i fail to see the point of a centre ATB when a def LT230 has the option to lock. in an axle maybe but in the T box? Cheers
James 110 2010 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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28th Feb 2020 3:31pm |
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| gtmotorsport Member Since: 29 Jun 2016 Location: Cornwall Posts: 97 
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Can confirm that a standard Td5 110 with 1.2 transfer does make towing harder. You are indeed dropping 5th to 4th to maintain 60mph. Can only imagine the issue being worse with the V8 5th gear. I have however had mine remapped by Td5inside and she’s spot on now, giving the low down torque to keep pulling.
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28th Feb 2020 4:17pm |
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| MadTom Member Since: 10 Sep 2013 Location: Olomouc Posts: 642  
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I had 1,2 transfer box on Discovery 2 with 238/85/R16 tyres (32"), and it was hard to start moving on first high gear, without play with clutch. When moving, remapped TD5 had enough power to move our bit heavy (like 3200 kg) travel car. When towing, first move was on low gear, and than switch to high with car still moving.
After change of diff gearing from standard 3,54 to 3,8 it is now much better. With 130 TD5 and stock 1,4 transfer box, it is nice to drive also with 1,5 ton loaded. "Drobek" = The Small One - Discovery 2, "Blufínek" = The Blue Thing - Defender 130, and for me at least Ford Mondeo  |
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28th Feb 2020 6:09pm |
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| LandymanStefan Member Since: 30 Aug 2017 Location: Surrey Posts: 881  
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I have a 1.2 transfer box on my stock 90 and I don’t tow. It’s great for me and what I do but I wouldn’t want to tow anything heavy with it, it wouldn’t struggle to hold its revs on long motorway uphills I imagine.
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28th Feb 2020 6:13pm |
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| benniferj Member Since: 20 Oct 2016 Location: Basingstoke Posts: 361 
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I always get to this point where I think about giving a 1.2 box a go and never do... because of all of these negatives I read... 1.3 Ashcroft at some point when I've got some spare coins... sounds like the ideal balance.
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28th Feb 2020 6:31pm |
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| benniferj Member Since: 20 Oct 2016 Location: Basingstoke Posts: 361
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You say you've got a high 5th, now I'd say a TD5 110 as standard on a 1.4 is quite revvy in 5th at 70, it cruises comfortably and economically at nearer 60, so now you've put in a high 5th, what would you say its comfortable speed is?
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28th Feb 2020 6:32pm |
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| miker Member Since: 13 Sep 2015 Location: Surrey Posts: 1772
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65-70 is my happy place, It can be pushed to 80 but it does get loud.
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28th Feb 2020 7:00pm |
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| miker Member Since: 13 Sep 2015 Location: Surrey Posts: 1772
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Some people seem to be big fans of the drivability and driveline backlash improvement mostly. |
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28th Feb 2020 7:11pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17626 
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It's also more robust than the stock unit, and a new ATB from Ashcroft is a lot cheaper than a new centre diff from LR (which is over£1600 as I recall).
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28th Feb 2020 7:20pm |
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