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View Full Version : Gear ratio's for 50mm lift 33 tyres


Krayzie Keegs
26th July 2013, 09:10 PM
Right well if i have to replace my Auto box I may aswell make it better at the same time.

What is the go with gear ratio fixes for lifted D2's

I am about 9Kh off at 100Kh
TD50WA
26th July 2013, 09:12 PM
33s need 4.1, makes ratio all but spot on original. Ashcrofts has a ratio calculator if you want to play around.
Krayzie Keegs
26th July 2013, 09:34 PM
33s need 4.1, makes ratio all but spot on original. Ashcrofts has a ratio calculator if you want to play around.


whats the price and how much ******* is it to do

they go in the LT230 yes, can not remeber
MR LR
26th July 2013, 09:37 PM
Diffs...

Take a look at the website, quite often personal research will give you a good answer...
TD50WA
26th July 2013, 09:38 PM
Ahhh sorry, 4:1 for diffs. I know you can get gear sets for low range in the transfer case, but they are very pricey, about twice the cost of doing both diffs.
High range can't be done afaik, so if you want to get better gearing, the diffs are the go.
d2dave
26th July 2013, 09:48 PM
I am going 32 inch on mine and I have worked out that 3.9 in the diffs will bring me back to standard.

Also by doing diffs, you can fix the weakness in the front diff which is working on the wrong side of crownwheel.

Coil Sprung - Diff Gearing (http://gbrutah.com/cs_drivetrain_diff%20gearing.html)

http://www.aulro.com/afvb/discovery-2/178394-changing-ratios.html
Landover
26th July 2013, 10:20 PM
The other option if you want to do it via the transfer case is to put a defender Transfer in. The are 1:4 ratio in high range instead of 1:22 which would give a better up and go. I don't know how it equates to standard though.
twr7cx
28th July 2013, 07:13 AM
I have been told that Defender transfer cases don't fit into the D2 for some reason?

Also, the Defender comes with 31" tyres, so changing to a Defender transfer case still won't be perfect for 33" tyres, but it would be better than the D2 TC which is for 29".
d2dave
28th July 2013, 10:57 AM
I have been told that Defender transfer cases don't fit into the D2 for some reason?

This is why.

http://www.aulro.com/afvb/technical-chatter/69661-disco-ii-transfer-case-vs-defender-trans-case.html#post876412