One of the next items on my list of things to get the car booked in for is that my car developed a whining noise last year, at first I thought it was a wheel bearing but was informed they were fine, I believe it's coming from the diff, I know that the filler plug and casing is leaking on it so could it have run low on lubricant and become worn out?
Is it a case of just needing an overhaul or is it likley I will need any new parts?
I know the car also needs a new UJ as it has been making a knocking sound for some time.
When I have this work carried out will the prop shaft need any attention too?