Front diff belched

[TheDurk]

The problem is that when I do an install, I re-enforce the stock skid. To do that I cut away the think factory steel and weld in 1/8" steel in the lowest areas. Every single skid I had to clean, as the gear oil would burn. Trust me if there was one I did not have to clean I would have celebrated. arty:

My skid was lousy all over when I painted it recently. But that was all from 17 years of oil filter changes. If gear oil had burped from the breather, I would have noticed it on the fender wall. Never happened.

 

[sschaefer3]

My skid was lousy all over when I painted it recently. But that was all from 17 years of oil filter changes. If gear oil had burped from the breather, I would have noticed it on the fender wall. Never happened.

Well I would have partied. Has not happened yet. Your breather must work.

arty:

 

[mtbtim]

My skid was lousy all over when I painted it recently. But that was all from 17 years of oil filter changes. If gear oil had burped from the breather, I would have noticed it on the fender wall. Never happened.

Yep, agree with the Durk here. I would bet most of that burning oil is motor oil from people not wanting to remove their skids when doing an oil change or they just have a leaky engine or maybe leaky differential seals. There's not a drop of oil on my skids because I remove them when doing oil changes and my rig doesn't leak hardly at all since I replaced the valve cover gaskets.

 

[Kanoe]

Just to stir the pot, here is the thread I mentioned discussing this exact issue less than a year ago.

http://www.toyota-4runner.org/3rd-gen-t4rs/212142-something-exploded.html

 

[mtbtim]

Just to stir the pot, here is the thread I mentioned discussing this exact issue less than a year ago.

http://www.toyota-4runner.org/3rd-gen-t4rs/212142-something-exploded.html

And, most likely the reason why it spewed out gear oil is he overfilled it. How do people overfill? They aren't on level ground and the rear end is lower than the front end. It doesn't take much of a slant and then you end up getting more gear oil in than you should. They also could have the front end jacked up but the rear wheels are still on the ground. Sorry, nobody is going to convince me it's business as usual for a differential to spew out gear oil. You either overfilled it or the breather is not working properly.

Knowing how to properly fill a differential, transfer case or manual transmission is Auto Maintenance 101. Just like when you check your engine oil and transmission oil, you need to be on level ground to get an accurate reading.

Ok, I think this subject has been thoroughly beaten to death.

 

[JohnMc]

I have a diff drop on my diff, perhaps that's part of the issue? With the nose of the diff dropped down an inch, perhaps it makes it easier to overfill, at the same time it drops the diff breather port down closer to the oil?