**THIS ISN'T M QUAD*** But it gave a good picture of my problem. Ok so washing it the other day i noticed there are two nuts where the red outline is. I don't know what they do or what they are for but the bigger outside on was just "floating" around on the axle not screwed on anywhere. I was wondering what they do and hopefully if nothings changed if I can just screw the bigger one back into place and call it good?