8 3/4 Vent Blow-By

I also emailed Cass at Dr. Diff the original question I wrote in my first post. I'm going to follow his recommendation and move the vent. Here is my email exchange with Cass and his answer:

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Hi Don,

What year is the housing? Is it an original A-body unit?

This is a common problem with pre '70 housings that have the vent bolt on top of the third-member.

The vent bolt should be located outboard of the third-member on the axle tube.

Cass

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Cass,

Thanks for the response. The rear is a 67 B-body that I have in my 72 Demon. The vent is in the stock location on the slanted part of the housing, I guess you could say it's at the 10:00 o'clock position on the third-member looking at it from rear of car. What are my options to stop it from blowing oil out of vent? Would a vent hose similar to what is on a 4-wheel drive work?

Don

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That is your problem. You need to move the vent hole to the stock A-body location on the tube.

I have never seen a vent hose work, even when it is attached to the frame rail.

Cass