just out of curiosity ,i refitted my gbox and filled it up to the hole (just under 2l) it started leaking out of the passenger side of the diff somewhere by the cv..the leaking appears to have stopped and if i put my finger in to the hole i can feel oil down there...if i overfilled it would it leak out the cv?is the oil level above the driveshaft level?or is this a driveshaft seal failure..i did manage to push the halfshaft in anouter 5mm or so so not sure if that done the trick ..reading on the forum another guyh had similar thing and he pulled shaft out then put back in and i seemed to fix itself....so mainly ,is the oil level higher than the bottom of the driveshaft?..thoughts?