VY 5.7 clutch slave cylinder is leaking fluid. I'm told this is a gearbox out job. This is the last straw with this car, I can't afford to own the thing anymore. I'm on a first name basis with the local dealer spare parts guys and the service dept. Anyway..with that off my chest, how long would you normally expect the slave cylinder to last and is it a serviceable item? If box is coming out, I guess at 175,00 kms the clutch may as well be replaced too?