At the risk of upsetting someone, Try to remove the ABS sensor out of the axle behind the dust shield. If you see honey colored oil, the axle is leaking. But just looking at you 2nd picture, I'd say your seal is blown.
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2007 4Runner Sport 4WD 4.0L 228,000 miles
The real stats on gun murders in America compared to the world (link)
Good riddance to the Clinton Crime Family-->
I Voted TRUMP…how’s it going for you now Trump is gone? Be careful what you ask for. You may just get it.