You're wrongI think if you jack the Landy up try spinning the wheel. If the wheel can spin then that's the one that has gone. Someone correct me if I'm wrong here.
You're wrong
Well if you've got a wheel off the ground it will spin freely unless there is something wrong with the centre diff I.e. it's ####ed like my transfer box was, or you have it in diff lock. Easiest way to pinpoint is get the prop off first and figure out which axle it is. If it's the rear just pull each half shaft and have a looksee. My moneys on the diff
If it's an older fender then you can use a 10 spline diff from a disco, front and rear are exactly the same and they cost pennies. I got my last one for 70 but you can get them much cheaper than that. Fitting in the rear shouldn't take any longer than an hour and that's with a brew breakssshhhh :lalala:
hope its not shall I