Thanks for the replies

Well at least I know it's useful when in need!
-Pos
The trick is to use the lowest gear you have, the lowest engine speed, get the clutch all the way up (no clutch-slipping when heavy pulling) and see what happens.
There are several options:
1. what you are attached to comes with you as far as you want it to. Point made. Every one should be suitably impressed.
2. the tow rope snaps. Use a stronger one. NEVER use a wimp towrope.
3. the tow-hook at one end comes off - very dangerous. You may get smacked in the kisser by a tow-ball and / or a big D-shackle.
4. nothing seems to be happening but the rope is very tight, and the funny thing is, some of your wheels are turning!
5. you stall your engine - so try again, and this time start off with a little slack in the rope so it takes up with a SLIGHT jerk.
6. sure as death there are other things can go wrong, like you break a half-shaft, your diff explodes, your wife phones and says if you aren't home in ten minutes your dinner goes in the dog, your girlfriend appears all dressed up for the date you forgot about .....
In your lowest gear (low range first gear - don't use reverse as it will break sooner), the TRACTIVE EFFORT that any Landy can apply is HUGE, because the TORQUE from the engine is multiplied over FORTY TIMES. You can tow huge loads, but you will have to do it SLOWLY. In second gear the torque multiplication is barely HALF of what it is in first, so with a really heavy load on, stay in first gear and just take your time. It's not a race. It's a heavy pull job, and taking more TIME lets you use a lower gear, and maximum torque multiplication.
CharlesY