Well you guys...I pulled the CR 18708 seal out...measured it, the outer lip is 1.877, inner is 1.835 (about, as much as one can measure a seal lip with a vanier caliper...LOL).

Tossing this over the yokes' shaft seals it up tight, both the old and new yoke have a decent interference fit.

Sooo....what gives? I have no idea why the gear lube would have been slinging out...however, looking at the pinion end, I can clearly see the bearing, should there be some kind of a washer on top if it. Directly beneath it in the housing is the passage that feeds the lube...I'm assuming somehow this was maybe overloading the seal??? Yeah...I know...makes no sense.

Here are a couple of pics:





I'm open to all ideas here...the benefit of putting the billet yoke will be that it has no dust-shield on it, so if the leak comes back I'll be able to tell exactly where it's coming from.