You can get away without special tools. There is a good right up on either LR4x4 or LRA forums.
- The crankbolt can be tight and a good impact is useful but there are other method if you don't have access.
- A dial torque wrench is nice to have so that the belt tension is set as per the book.
- A bent handled wrench is handy for getting the fan off.
- You can use a drill bit to hold the injection pump in the right spot and you can set crank position by eye looking through the flywheel housing drain.
- You may need a puller to get the crank flange off, but not always.
edit: here is the writeup: http://forums.lr4x4.com/index.php?showtopic=14285