 changed but it's not very but not very often no very rarely but when it happens it's usually like this it's a all of a sudden there's a noise when it moves we pull the plug out and go oh yeah that's doesn't look good and we put another case in it and it's back on the road and we're assuming you've already been underneath there and giving a physical inspection to see if there's any messed up drive shafts or or what what have you correct uh yeah i'm not a mechanic but i just uh