One of my fiends is has a LR Series 3 with a Isuzu engine 2.8 running through a series 4 speed box. He has a whole Isuzu and gearbox assembly which he is thinking of putting in, but the thing we would like to know is what it the difference in the axel ratios between a series 3 and a Isuzu trooper as this seems to be the only possible problem area, ie not enough power to turn the wheels or too undergeared.
Any help would be greatly apriciated.