I'm a bit stumped. Have an old Warn 8403 mounted to the bumper (PO) ... looks straight forward to remove but I can't see how to remove the bottom bolts that attach the fairlead? Nuts on winch side are square and fit slot, so don't rotate (so can't remove from behind); on the front are 1.25" diameter recesses with a smooth headed something that goes thru fairlead and bumper to winch. I can't seem to see how to spin the bolts to remove nuts (and hence, winch). Am I missing something?