Depending on the year of manufacture, it's also possible to have a metric/standard thread mismatch between the gearbox and the hose fittings, but the thread size and pitch is usually different enough to prevent assembly at all.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!