Hi guys had my 99 y61 for a few year now and have always had a problem with a shocking clunk in the front end took it to a mechanic and tested the chain in the transfer case not that. He told me I had a lSD in the front . wich I don't. He put some additive in and seemed to be fine for about 2 weeks then the clunk came back been fairly mechanically minded thought I would have a crack my self. drive line to front diff was fine but front hubs where slipping teeth and making me loose traction. which was the cause of my noise so I replaced front hubs and went for a trip on the week end and chewed out the front left hub in less then 3 hours these where brand new manual hubs. ended up having to drive home in 2wd off the beach not much fun. Any help would be greatly appreciated. cheers tom