Outer Limits 4x4 Board

I am looking at replacing the rear engine seal in my 2h, Is it a big job? whats the best way of doing it. Also is there anything else i should be looking at while i have it all appart.

thanks

Since the gearbox has to come out...you may as well check the clutch condition and everything else associated with. If any signs of the clutch getting old replace it...saves pulling the box out again a year later is my thinking.