C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Differential Vent

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Old Aug 23, 2017 | 08:59 PM
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Default Differential Vent

Where is it, have felt around the top and looked as best I could, a 78
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Old Aug 24, 2017 | 12:36 AM
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Top left on the rear cover. Tough to get to it as the cross member that it's bolted to blocks the view. It also could be missing so all you would have is a hole in the top of the cover.

Last edited by claysmoker; Aug 24, 2017 at 12:37 AM.
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Old Aug 24, 2017 | 01:17 PM
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Hi b,
Here's the reproduction vent on a 71 differential.
That little 'cap' at the top is 'loose fitting' and that's what allows the 'venting'.
There is on going discussion about vents with green or white caps and when during production either was used.
Regards.
Alan

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