driving along luckily not going very fast, then without any warning the rear wheels lock just liked i've ripped the handbrake up ...loads of gear oil uner the transfer box. pulled out fuse 19 but the wheels were still locked. had to get my mate with a flatbed to bring it home...transfer box seized??. only been on the car about 6 months
Are you by any chance missing the temperature sensor on the box? It should be located on the side of it. i have heard of a couple of VTS box's on here not having them. Without it there is nothing to "trip" your box out if it starts to overheat and siezure is possible.