Gearbox oil change type 9 gearbox

[jevans82]

Hi all, I've read some contrasting info on where the access to the gearbox oil is on my caterham.

I had thought there was only one access on the drivers side and no drain plug on the bottom.

Was told today that there is a fill plug on the passenger side and the access on the drivers side is the drain.

I have a pump for the oil removal so really only need to find the fill plug so I can top up with that to the right level.

Caterham is a sigma engine with type 9 box.

Many thanks,

J