Pajero Owners Club of South Africa

I went to Groenkloof yesterday. When I returned the SuperSelect baqck to 2H from 4L (with the gearlever in N) the gearbox was engaged for a few seconds then slipped to neutral. I put the gearlever into N and I heard the clunking noise from the rear diff (not sure about the technical term right now ??). I then went back to D and drove on for a few seconds and it happened again. I did the same procedure again (D->N->D) and everything was fine. Is this common or is something starting to give?

I used to go from 4l to 4hlc while in neutral and stationary, wait a few seconds, and drive a few meters, the to 4h on the fly, then to 2h on the fly.

Thanks Marius, will try that next time