Hi, finally got mine running but it now has an oil leak ( atf) from the bell housing. looking at Rave it seems to me that an oil seal has gone, now the ? is are these boxes and transfer box in the realms of a competent diy mechanic to remove. I have a 2.5t engine crane and a 2.5 trolley jack,I have done clutches on my own in our 300tdi disco's. Are there any things I should be on the lookout for if tackling this excercise, many thanks.