Thanks for the info but I think I'll take it to someone who knows what there doing
trust me im a mechanic and ive owned 2 Discos with autobox and done many oil changes ok this is simple vehicle on level ground or jacked up level with the engine running at operating temp autobox in neutral remove the filler plug located on the front of the autobox oil sump and oil should be flowing out if not then top up with dexron II or III . DONT do what BIG MATT did the engine must be running and at temp only then you can get the correct fluid level .
sorry totaly forgot about thatJust to add to what defcrazy said: with the engine running you need to cycle through all gearbox positions BEFORE undoing the fill plug to test the level.