Not sure what your talking about big papa? It has a crack in the housing wheel is chewed up and there is stuff inbeded in the inlet. Looks like aluminum imbeded from wheel. Where the crack is you can see it has gotten into the sides of the fins like it pulled it in while spinning. Its had a filter on it and all clamps were good and tight so not sure how i got debri in there. I wonder if the crack didnt do this cuz if it pulled it in hit the wheel that would make the debri.its a 68mm from taterbilt.