Just wondering how big a job this is, please? 2001 TD4 manual. When I was doing the oil change the other day, I noticed a bit of an oil leak from the left hand end of the gearbox, where the driveshaft plugs in. There is a small amount of up-and-down play in the bearing, if I push the inner CV joint housing up and down, but no more than on a lot of front wheel drive cars that I've worked on.