Gear box services

not too sure where the filler hole is but normally the hole is on the side and you top up untill the oil starts to drip out it.

if your are not sure how long the oil has been in the box change it the drain plug is under the box make sure you put a container under to catch the oil and your drain plug should you drop it drain the oil when warm that is to say take the car out for a run till the temp is normal When you refill put two bottles in then check the level on the dip stick you will have to fill through the dip stick it takes time put the end result will be a better gear change have fun