Hi Ian thanks for faxing me the information yesterday. Just a bit of extra info I came across. If you remove the battery and tray, there is a filler plug there. we got the gear box to the correct temperature then removed the level plug and collected the fluid that came out with engine running in neutral until it almost stopped. We then added that amount back into gear box and the amount that we lost. Re ran the gear box up to temperature, moved it through the gears and.then drained out surplus until a steady flow (thickness of a pencil)came out and then refitted the plug. Carried out road test and then rechecked level again.Fixed