orgazmick

Hi all just after xmas and this is all that i need .gear box oil is all over the drive .allmost defo a seal gone some where .how bigger job is takeing out gear box. i am quite pratical minded and have a garage with a pit built into it so access should not be a prob it's just the way 2 do i need and some guidance ieull this thing out then push the black thing outtaa the way any ideas would help me or should i just leave it alone and let garage do it not subaru i aint that minted lol