I went to sandlake this weekend and was having a blast. This morning some one stopped by camp and asked if I would help get his friend unstuck from the first bowl. Said no problem and away I went. Was working on pulling him out and heard some popping sounds when I was in 4 wheel. The guy had me go to his camp and he checked out both my hubs and he said they seemed to be ok. He thought that it might be the Spider gears? It only happened when I was in 4 wheel drive and I had no problem driving it home in 2 wheel. So if this is the case... how hard is it to fix and what is required to do it? any and all help or suggestions would be great!!!