any differential vent? 1965 300

[mathiew]

I look at the oil level in my differential, and I heard pressure sound when I removed the plug (positive or negative I don't know) so I look for any vent, and I don't find any!
Does it have a kind of vent on that?

 

[polara71]

There should be one on the top of the axle , there is on my 70. It is at the brass block where your brake line is.
No picture available....

 

[mathiew]

ok thanks, I searched on the top of the diff like my Tacoma, I find this this morning

 

[polara71]

That's it!

 

[Ross Wooldridge]

And if it's plugged it won't relieve pressure.

 

[mathiew]

Yes thank, this is why I ask were is the vent!

 

[Ross Wooldridge]

If yours needs replacing they're available new on eBay.

 

[mathiew]

I just remove it! It work good! It work like a one way valve or check valve, it lest air escape, and no air or dirt can go inside the diff!