Not a good thread title/description, sorry. I have a lot of grime on one side of my diff. I see nothing obviously leaking, but the worst of it is near the top of the diff rear cover; there is something in between the two top bolts on the cover. Look here:
https://www.yukongear.com/DiffDetail...ette+%26+Viper
Look above the Viper logo, to the top-right bolt hole, I'm talking about the dark grey/black thing sticking out next to that bolt hole. I think there must be a leak there, but what is that thing? I can't get close enough to mine to see it, but I can feel that it's some sort of nut that seems to spin freely. Is it a breather, or over-flow vent? What does it do?
Cheers,
Paul.
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05-30-2015 #1Enthusiast
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What is the thing on top of the diff cover?
Last edited by Chorn; 05-31-2015 at 07:25 PM.
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05-30-2015 #2Enthusiast
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My guess would be a vent/breather, but I don't know for sure. Those typically only leak when a differential is over filled.
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05-30-2015 #3Enthusiast
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Here's an explanation. Different car but same thing.
Originally Posted by Chorn
http://www.miata.net/garage/reardiff/
Bigger pic of Viper diff attached below:
468_large_image.jpg
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05-31-2015 #4Enthusiast
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- Dec 2013
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Thanks! Maybe it was over-filled last time the dealer changed it. I don't look under there too often, so the leak/grime could have been there a while. Looks like the vent part is not available any longer, so I guess I'll clean up the mess, then keep an eye on it, and if more appears, I'll pull it out and take a look.
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