i haven't had any problems with the front housing, even though its alloy, and i seem to break my left hand side half shaft before anything else goes, and i'm still not running any lockers.
currently i sorta see it as: if i cant get past it or over it unlocked, then any other attemp at the obstacle will result in me breaking something.
i only give it curry when i'm on the flats or in the mud etc etc, but when its dry and i'm climbing, i'm a little more gentle, even though i'm only running 31"s. CV angle also plays a big part.