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Ndamico



Member Since: 03 Apr 2019
Location: Canada
Posts: 52
Canada 2004 Defender 110 Td5 CSW Alpine White
Gears
Hi,

My TD5 currently has stock 3.54 gears. going from stock to 35" tires and lockers. i've been looking at ashcroft's gear calculator here:

https://www.ashcroft-transmissions.co.uk/calc/ratio_calc.html

on my gasser v8 RRC with 1.2 transfer boxes i always went 4.12 or 4.75.. however with the storm tuned td5 and 1.4 transfer box it seems like even 4.12 would be too low of a gear for 35" tires. what do most of you do when you go to bigger tires?

thanks
Post #776859 9th Jun 2019 10:49pm
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Mr Fudge



Member Since: 05 Dec 2013
Location: Near Oxford
Posts: 90
United Kingdom 
I'm running a tuned TD5, with Ashcroft lockers on 35's with a 1.4 transfer box and its fine. Occasional 1st in high range is a bit too high, but other than that its very driveable.

The other week I cruised for two hours on the motorway with a caravan on the back at the top side of 60mph.

I'd stick with it if you are planning on any sort of distance.
Post #776947 10th Jun 2019 7:10pm
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Ndamico



Member Since: 03 Apr 2019
Location: Canada
Posts: 52
Canada 2004 Defender 110 Td5 CSW Alpine White
thanks for the reply. what do you find you can cruise at on the highway?
Post #776957 10th Jun 2019 7:31pm
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Ndamico



Member Since: 03 Apr 2019
Location: Canada
Posts: 52
Canada 2004 Defender 110 Td5 CSW Alpine White
i see you have a 2007 110. are you still using the stock gears in the p38 diff or did you switch to the ashcroft 3.54 gears? i keep reading the p38 diff is weak and i should switch it for sals..

Mr Fudge wrote:
I'm running a tuned TD5, with Ashcroft lockers on 35's with a 1.4 transfer box and its fine. Occasional 1st in high range is a bit too high, but other than that its very driveable.

The other week I cruised for two hours on the motorway with a caravan on the back at the top side of 60mph.

I'd stick with it if you are planning on any sort of distance.
Post #776958 10th Jun 2019 7:38pm
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Mr Fudge



Member Since: 05 Dec 2013
Location: Near Oxford
Posts: 90
United Kingdom 
Profiles out of date Embarassed

My comments are for 2001 TD5 90.

Comfortable cruising speed is 65mph to 70mph. I also have an overdrive which I can use on the level and downhill if I'm doing over 65mph.
Post #776961 10th Jun 2019 7:55pm
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Ndamico



Member Since: 03 Apr 2019
Location: Canada
Posts: 52
Canada 2004 Defender 110 Td5 CSW Alpine White
what seems to be the max highway RPM you like to run that thing at? i'm surprised you have an overdrive with stock gears?
Post #776963 10th Jun 2019 8:08pm
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