Zeta

I think I have lost my diff vent. See the link on the pass side of the differential you can see a small round hole.

http://www.zracer.com/camaro/images/...ff-housing.jpg
http://www.zracer.com/camaro/images/...RE-10bolt0.jpg

I also checked my helms, but did not find good pic.

Right now there is an empty hole where I think the vent should be. Can someone please describe the stock or a replacement part?

Thanks!