I know this is an old thread, but I had the same issue on my LX570. Telescopic adjustment stoped working. Dealer quoted $3700 for steering wheel column replacement. Lol.
I ended up 3D printing a couple of gears for it and finally replaced it...
Haha thats the biggest problem. Because there are so many land cruiser out there having this problem, everyone seems to be finding for the same part! You go back to toyota and they tell you to replace the whole steering column which i find really...