When in extreme boggings or doing lots of low range work, the Land Rover transfer case oil can overheat, which could lead to premature failure of the transfer box. I decided to install a Global Roamer finned extended capacity cooling sump for my LT230 transfer case. This unit extends the oil capacity by 500ml and adds cooling fins onto the base to increase air cooling.
The original sump plate.
What lurks beneath the cover.
The old versus the new.
Installation complete. The sump is still located high enough to avoid damage. The chassis and handbrake drum are located lower so are more likely to be damaged first then the upgraded sump.
If the video did not display above you can watch it here: http://youtu.be/YIuWWYzNypY