So what was meant to be an easy straight forward job of flushing the clutch system of the manky fluid that once resided in it, turned into a 2 hour gearbox out job, Number 1 thing not to do, When the bleeder doesn't feel like crakcing don't keep trying to crack it you will shear it off, try a 7/16 socket on it first to make sure there isn't a little nipple on the end, I found this one out the hard way, I ended up replacing the complete throwout bearing with an Alloy unit from a GM Machine I will give them the thumbs up with this one compared to the plastic unit supplied on the ford units,