So craigs car just passed its MOT, no issues, apart from the tester said that rear driveshaft seals were leaking.
First things first we wanna make sure theres enough oil in the diff, since we dont know how long they have been leaking, what kinda oil should we be topping it up with? Any gen on whether the diff needs a special drain/fill key, or is it something off the shelf (yes i know i could just look under, but i dont have the car :P)?
secondly, we need to change the rear shaft seals, now, is this a big job? Whats involved in this one? Any specialist tools required for it?