the knub could have some crud, rust on it or the fan clutch female could have some stuff in it
it is a fairly snug fit between the male on the bracket and the female of the clutch
something is wrong, there should be threads coming past the end of the nut
the backside of the flange should be up close to the housing, can't see it in the pic
also a shock issue and a mysterious loss of 4wd
vice grips........................................what a great invention
the fender probably wouldn't have been bad except the entire body has a skim coat