i spent a little over 1 hr removing the spare tire winch, repacking with grease, welding it together again and it works flawlessly. depending what your priorities are, it may be worth it for you? if the time comes I get a flat in bad weather or bad location, the last thing id want to do is fight with the tire winch.
I'm going to see if the LR3 tire winch is still available from LR parts. It had a 22mm bolt that you attach the lug wrench (or any socket driver) to. The only reason LR changed the winch design was because lazy tire places would take an air gun to the winch and ruin it.