is this a third member leak???

[zcostilla]

So I was replacing the other upstream oxygen sensor today and noticed fresh oil collecting where I had wiped off a bunch of grime when replacing the driver’s side upstream O2 sensor a couple weeks ago. I looked all over to try to find the source but somehow I can’t spot it. What am I missing?

Attached are photos of the oily areas and the clean areas my mind wanted to check out first.

Thanks in advance!

 

[ClassyJalopy]

This could be the front diff pinion leak. It is quite each to replace.

Build - The Story of Blue

 

[zcostilla]

This could be the front diff pinion leak. It is quite each to replace.

Build - The Story of Blue

Looks like something I’ll have to pay a mechanic to do. I have a friend who is a shade tree mechanic and does good work.

 

[jahawk]

I'd just make sure the front diff and T-case are full and let it ride. Maybe put in some some ATP205.

Jim