Quote:
Originally Posted by j cAT
this looks like the front gear box axle seal.
the gear oil to use is 80-90wt GL5 ..did you replace this oil lately or did someone else ? this gear oil is a heavy oil...could be engine oil spilled down from fill spout ..check the gear box oil level should be 1/2 inch below the fill hole when cold...when hot at the top of fill hole.....
some times these will weep when temps change then stop leaking...
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Sorry, I didn't mention that this pic is from the passenger side of the truck, the opposite side of the front differential (is that what you meant by "gear box"?).
I did however recently (2 months ago) top off my differential oil. I think I had a plug in my differential overflow valve because a bunch of stinky differential fluid gushed out onto my drivers side wheel well. I topped off the fluid and all was well.
Here's what I'm wondering: If in fact the differential overflow valve is clogged that would break one of the CV joint-to-axle seals/gasket.