Hey 4 wheel driving buddy, we noticed you’re using an ad blocker. 😢 4x4earth is Australia’s largest free and independent 4 wheel drive website, and we display almost 500,000 pages a month and produce Australia’s number 1 automotive podcast. All this takes money and we rely on ads to keep the lights on. Please consider unblocking ads for 4x4earth.com, or purchasing an annual 4x4earth subscription, which removes the ads on the forum, or you could buy a T-shirt or Polo from the Store, we are currently giving away a free membership for 12 months with each T-Shirt.
What has actually happened to your gearbox, I noticed on the one that I had I had to be a bit careful as it would some times pop out of gear while idling, and it was getting worse at the time that I sold the vehicle.