I got a 1999 Honda foreman 400 that has been bored out a 670 and when I got it the front diff was busted wide open and i replaced it with one out of a 1999 Honda foreman 450 es that was flooded out about 3 months ago I went to creekside in splendora Texas and when I came out of a deep thick hole heard it knocking so I loaded up and went home but I still dk what the noise is so I need some help