chris i have spent several hours on and off looking for info but seem to be at a loss. all i read about is seals blowing out people drilling and tapping new holes for breathers, bellos are to short and so on. i run amsoil gear oil and have for about 6 months. just ran into this issue today. can i fix the problem with leaving the diff in place and i saw that you leave an inch of room in the diffs from the fill hole do you know hom many oz or mm you put in them. i just fill them to the hole and screw the cap on. my ft does not leak anything but this is a first for me and am very maticulose about reliability and no leaks. should i replace the bearing in there to behind the retainer, wile im at it?