I have exactly the same problem on my 2000 v6 freelander ,it started with a clonk on left turns usually tas if I had dropped into a hole on the road then it became a clonk when the auto went into top and then a noise like when your snow chains are not fitted correctly and something is catching as the wheels go around. Today it went into a banging clanging from the rear end and on full lock it was as though the car was going to break in two with the bangs. I had to get home but now the car is not going to be driven until I sort this out. AA man who followed me home looked underneath but could see nothing obvious and nor can I . It is an old car nor worth much but I like it any advice would be really welcome.