DII Steering Box Replacement

[Storz]

Average home mechanic do-able? Mine is starting to leak to where I have to add fluid around once a week or so to keep it topped off.

Any special tools etc needed?

 

[Big D]

Check this out. Near the end of the video you pretty much see how to take it out and what's involved.

[ame="http://www.youtube.com/watch?v=b7y1d5DXNp8"]YouTube - Wheeler Dealers Land Rover Discovery TDi - Part 2.avi[/ame]

 

[Antichrist]

It's not terribly difficult. They are heavy, so an extra pair of hands or a floor jack can help. The hardest part will probably be getting the drop arm off your old one to install on the new one.
Meridian auto sells refurbished, exchange.