I dropped the spare tire this afternoon in prep to change the rear differential oil tomorrow for which I believe to be the first time on my wife's 074Runner with 160,000 miles.
The oil stain was there before I took the picture, but before I took the pic I hit the fill bolt with some PB Blaster - like a few drops. So the oil stain has been there fr a while.
Where/how is the bigger oil stain/leak coming from?
Edit for morning update - I was prepared to go to battle with the fill and drain bolt with my biggest breaker bar.
Not needed - both bolts were finger tight.it still had a fair amount of oil.
Pic:
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