Outer Limits 4x4 Board

I am considering fitting a set of rock crawling gears into a 2.8 to overcome the low or no torque problem , has anyone done the same and has the result been worth the cost ????? Regards

yes, my father has Rockhoppers fitted to hi 2.8TD GU, it drive verry well off road now, and is very happy with the result, he is also runninh 35's and 4.88 diff gears,