I have had a clunking when i lift the cluch. Just the other day i lost all but minamal drive its like its trying to drive as a 2 wheel drive not as a 4x4 lots of reving little movement. its not the clutch as it changes into gear. I presume it is the transfer box or one of the axles how do i find out what the problem is.Can someone help me please. Thanks in advance CONFUSED1