hay all
on my vitara sport when i lock the front hubs i get i sort of grinding noise when 2wd but goes if its in 4wd,4wd works fine when off roading tho
the only way i can say it sounds is as if the 2 cogs are not quite touching so slipping grinding

:undecided:but will not always do it,some it takes a few miles other time its fine
cvs are ok,no clicking,knocking
hope that makes some sort of sense to you

mark