So I bought this quad in February and it has 12 hrs and 50 miles on it. I just put a set of kenda executioners on it. Same size as factory. When I'm riding along and let off the throttle I hear the clutches whining as it slows then about 5mph I hear this ratcheting/grinding sound. I've never heard it before. My two front cv shafts seem tight but I can slide them horizontally about 1/4". I'm not even sure where to start looking. The sound seems to start when you feel the tires start to vibrate. Both fronts have the same horizontal movement but the rears are tight. Any ideas???