Still have the uber slow leak out of the front LH shaft. (diff end). On inspection, looks like the oil seal just inside/under the retainer. So bought the oil seal, will go back tomorrow for the o-ring i think.
Just need to know how to remove the retainer, if its threaded etc, and if someone sells the tool, (noting its for backlash adjustment too), and ill be good to do it from there.
Brent.