I tried to put my input in terms of how I was thinking at the time I bought a diff lock but I guess the more you learn the more you take for granted in the knowledge of others.
If you get maxi drive, unless you are competant to remove the axle assy and cut a hole in the axle tube and weld a steel block onto the tube without warping the tube, or if you don't understand this, you need proffessional installation.
Once installed rear maxi is pretty much bulletproof. There is no compressor or electrical to fail and the breakable parts in the original assy are replaced so the chances of any problems are very low, the kit contains EVERYTHING you need. That's it for the rear end!
The front is a different story because the front end has week links and more parts need replacing. My advice to you is to ring maxi drive 07 5530 3934 they will tell you honestly what you need, remember, they are Land Rover specialists, they don't do any other vehicle!
If you buy any other diff lock you will not get all the other "beef up" bits and might also have to buy a compressor, so you would have to buy them seperately. Bear in mind that a compressor is a must have anyway so you can deflate your tyres for added traction and then pump them up for the drive home.
Hope this helps.
Steve.

